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Late Devonian extinction

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1482:, which marks the boundary between the Devonian and Carboniferous periods. This could offer a possible explanation for the dramatic drop in atmospheric ozone during the Hangenberg event that could have permitted massive ultraviolet damage to the genetic material of lifeforms, triggering a mass extinction. Recent research offers evidence of ultraviolet damage to pollen and spores over many thousands of years during this event as observed in the fossil record and that, in turn, points to a possible long-term destruction of the ozone layer. A supernova explosion is an alternative explanation to global temperature rise, that could account for the drop in atmospheric ozone. Because very high mass stars, required to produce a supernova, tend to form in dense star-forming regions of space and have short lifespans lasting only at most tens of millions of years, it is likely that if a supernova did occur, multiple others also did within a few million years of it. Thus, supernovae have also been speculated to have been responsible for the Kellwasser event, as well as the entire sequence of environmental crises covering several millions of years towards the end of the Devonian period. Detecting either of the long-lived, extra-terrestrial radioisotopes 1459:, cannot generally be dated with sufficient precision to link them to the event; others dated precisely are not contemporaneous with the extinction. Although some evidence of meteoric impact have been observed in places, including iridium anomalies and microspherules, these were probably caused by other factors. Some lines of evidence suggest that the meteorite impact and its associated geochemical signals postdate the extinction event. Modelling studies have ruled out a single impact as entirely inconsistent with available evidence, although a multiple impact scenario may still be viable. 972: 7125: 859: 1055:) were eliminated. The family is a great unit, and to lose so many signifies a deep loss of ecosystem diversity. On a smaller scale, 57% of genera and at least 75% of species did not survive into the Carboniferous. These latter estimates need to be treated with a degree of caution, as the estimates of species loss depend on surveys of Devonian marine taxa that are perhaps not well enough known to assess their true rate of losses, so it is difficult to estimate the effects of differential preservation and 119: 24: 1087:, is the term given to the extinction pulse that occurred near the Frasnian–Famennian boundary (372.2 ± 1.6 Ma). Most references to the "Late Devonian extinction" are in fact referring to the Kellwasser, which was the first event to be detected based on marine invertebrate record and was the most severe of the extinction crises of the Late Devonian. There may in fact have been two closely spaced events here, as shown by the presence of two distinct anoxic shale layers. 7537: 1424:
igneous province emissions and extraterrestrial impacts and the fact that there is no confirmed evidence of the latter occurring in association with the Kellwasser event, this enrichment strongly suggests a causal relationship between volcanism and the Kellwasser extinction event. However, not all sites show evidence of mercury enrichment across the Frasnian-Famennian boundary, leading other studies to reject volcanism as an explanation for the crisis.
7547: 1191:, the Frasnian-Famennian boundary instead shows evidence of increased oxygenation of the seafloor. Trace metal proxies in black shales from New York state point to anoxic conditions only occurring intermittently, being interrupted by oxic intervals, further indicating that anoxia was not globally synchronous, a finding also supported by the prevalence of cyanobacterial mats in the 1305:, covers most of the present day north-eastern margin of the Siberian Platform. The triple-junction rift system was formed during the Devonian Period; the Viluy rift is the western remaining branch of the system and two other branches form the modern margin of the Siberian Platform. Volcanic rocks are covered with post Late Devonian–Early Carboniferous sediments. Volcanic rocks, 1168:
dominant role in extinction. Evidence exists of a rapid increase in the rate of organic carbon burial and for widespread anoxia in oceanic bottom waters. Signs of anoxia in shallow waters have also been described from a variety of localities. Good evidence has been found for high-frequency sea-level changes around the Frasnian–Famennian Kellwasser event, with one
1224:; conodont apatite δO excursions also occurred at this time. A similar positive δO excursion in phosphates is known from the boundary, corresponding to a removal of atmospheric carbon dioxide and a global cooling event. This oxygen isotope excursion is known from time-equivalent strata in South China and in the western 1162:
and subsequent anoxia. For example, during an algal bloom, organic material formed at the surface can sink at such a rate that decomposition of dead organisms uses up all available oxygen, creating anoxic conditions and suffocating bottom-dwelling fish. The fossil reefs of the Frasnian were dominated
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archaeopterids, at the end of the period. This increase in height was made possible by the evolution of advanced vascular systems, which permitted the growth of complex branching and rooting systems, facilitating their ability to colonise drier areas previously off limits to them. In conjunction with
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Vertebrates were not strongly affected by the Kellwasser event, but still experienced some diversity loss. Around half of placoderm families died out, primarily species-poor bottom-feeding groups. More diverse placoderm families survived the event only to succumb in the Hangenberg event at the end of
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evolved smaller eyes in the run-up to the Kellwasser event, with eye size increasing again afterwards. This suggests vision was less important around the event, perhaps due to increasing water depth or turbidity. The brims of trilobites (i.e. the rims of their heads) also expanded across this period.
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concentrations from about 15 to three times present levels. Carbon in the form of plant matter would be produced on prodigious scales, and given the right conditions, could be stored and buried, eventually producing vast coal measures (e.g. in China) which locked the carbon out of the atmosphere and
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forests expanded rapidly during the closing ages of the Devonian. These tall trees required deep rooting systems to acquire water and nutrients, and provide anchorage. These systems broke up the upper layers of bedrock and stabilized a deep layer of soil, which would have been of the order of metres
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sequestration by mountain building has been suggested as a cause of the decline in greenhouse gases during the Frasnian-Famennian transition. This mountain-building may have also enhanced biological sequestration through an increase in nutrient runoff. The combination of silicate weathering and the
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The Kellwasser event and most other Later Devonian pulses primarily affected the marine community, and had a greater effect on shallow warm-water organisms than on cool-water organisms. The Kellwasser event's effects were also stronger at low latitudes than high ones. Large differences are observed
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in the time period around the Kellwasser event. Evidence from various European sections reveals that Kellwasser anoxia was relegated to epicontinental seas and developed as a result of upwelling of poorly oxygenated waters within ocean basins into shallow waters rather than a global oceanic anoxic
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Extinction rates appear to have been higher than the background rate for an extended interval covering the last 20–25 million years of the Devonian. During this time, about eight to ten distinct events can be seen, of which two, the Kellwasser and the Hangenberg events, stand out as particularly
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enrichment has been found in deposits dating back to the Kellwasser event, with similar enrichments found in deposits coeval with the Frasnes event at the Givetian-Frasnian boundary and in ones coeval with the Hangenberg event. Because coronene enrichment is only known in association with large
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and (to a lesser degree) corals—organisms which only thrive in low-nutrient conditions. Therefore, the postulated influx of high levels of nutrients may have caused an extinction. Anoxic conditions correlate better with biotic crises than phases of cooling, suggesting anoxia may have played the
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in the Late Devonian, the timespan of this event is uncertain, with estimates ranging from 500,000 to 25 million years, extending from the mid-Givetian to the end-Famennian. Some consider the extinction to be as many as seven distinct events, spread over about 25 million years, with notable
897:, although there is evidence this shift in reef composition began prior to the Frasnian-Famennian boundary. The collapse of the reef system was so stark that it would take until the Mesozoic for reefs to recover their Middle Devonian extent. Mesozoic and modern reefs are based on 1317:
large igneous provinces were suggested to correlate with the Frasnian / Famennian extinction, with the Kola and Timan-Pechora magmatic provinces being suggested to be related to the Hangenberg event at the Devonian-Carboniferous boundary. Viluy magmatism may have injected enough
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this, the evolution of seeds permitted reproduction and dispersal in areas which were not waterlogged, allowing plants to colonise previously inhospitable inland and upland areas. The two factors combined to greatly magnify the role of plants on the global scale. In particular,
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Lutzoni, François; Nowak, Michael D.; Alfaro, Michael E.; Reeb, Valérie; Miadlikowska, Jolanta; Krug, Michael; Arnold, A. Elizabeth; Lewis, Louise A.; Swofford, David L.; Hibbett, David; Hilu, Khidir; James, Timothy Y.; Quandt, Dietmar; Magallón, Susana (21 December 2018).
1123:), several environmental changes can be detected from the sedimentary record, which directly affected organisms and caused extinction. What caused these changes is somewhat more open to debate. Possible triggers for the Kellwasser event are as follows: 962:
as nutrient input changed. As with most extinction events, specialist taxa occupying small niches were harder hit than generalists. Marine invertebrates that lived in warmer ecoregions were devastated more compared to those living in colder biomes.
901:("stony") corals, which would not evolve until the Triassic period. Devonian reef-builders are entirely extinct in the modern day: Stromatoporoids died out in the end-Devonian Hangenberg event, while rugose and tabulate corals went extinct at the 3771:
Stein, William E.; Berry, Christopher M.; Morris, Jennifer L.; Hernick, Linda VanAller; Mannolini, Frank; Ver Straeten, Charles; Landing, Ed; Marshall, John E. A.; Wellman, Charles H.; Beerling, David J.; Leake, Jonathan R. (3 February 2020).
1228:, suggesting it was a globally synchronous climatic change. The concomitance of the drop in global temperatures and the swift decline of metazoan reefs indicates the blameworthiness of global cooling in precipitating the extinction event. 1439:
approximately 374 million years ago. Remains of this caldera can be found in the modern day state of Victoria, Australia. Eovariscan volcanic activity in present-day Europe may have also played a role in conjunction with the Viluy Traps.
298:; that is, a lack of oxygen, prohibiting decay and allowing the preservation of organic matter. This, combined with the ability of porous reef rocks to hold oil, has led to Devonian rocks being an important source of oil, especially in 1239:
is a greenhouse gas, reduced levels might have helped produce a chillier climate, in contrast to the warm climate of the Middle Devonian. The biological sequestration of carbon dioxide may have ultimately led to the beginning of the
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and rifting in the Russian and Siberian platforms, which were situated above the hot mantle plumes and suggested as a cause of the Frasnian / Famennian and end-Devonian extinctions. The Viluy Large igneous province, located in the
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Kuzmin, M.I.; Yarmolyuk, V.V.; Kravchinsky, V.A. (2010). "Phanerozoic hot spot traces and paleogeographic reconstructions of the Siberian continent based on interaction with the African large low shear velocity province".
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Algeo, T.J., S.E. Scheckler and J. B. Maynard (2001). "Effects of the Middle to Late Devonian spread of vascular land plants on weathering regimes, marine biota, and global climate". In P.G. Gensel; D. Edwards (eds.).
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systems that allowed them to survive away from places that were constantly wet—and so grew huge forests on the highlands. Several clades had developed a shrubby or tree-like habit by the Late Givetian, including the
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Zheng, Wang; Gilleaudeau, Geoffrey J.; Algeo, Thomas J.; Zhao, Yaqiu; Song, Yi; Zhang, Yuanming; Sahoo, Swapan K.; Anbar, Ariel D.; Carmichael, Sarah K.; Xie, Shucheng; Liu, Cong-Qiang; Chen, Jiubin (1 July 2023).
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There is evidence that the Kellwasser event was a two-pulsed event, with the two extinction pulses being separated by an interval of approximately 800,000 years. The second pulse was more severe than the first.
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thick. In contrast, early Devonian plants bore only rhizoids and rhizomes that could penetrate no more than a few centimeters. The mobilization of a large portion of soil had a huge effect: soil promotes
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The brims are thought to have served a respiratory purpose, and the increasing anoxia of waters led to an increase in their brim area in response. The shape of conodonts' feeding apparatus varied with
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Sole, R. V., and Newman, M., 2002. "Extinctions and Biodiversity in the Fossil Record - Volume Two, The earth system: biological and ecological dimensions of global environment change" pp. 297-391,
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Though a super eruption on its own would have devastating effects in both short term and long term, the Late Devonian extinction was caused by a series of events which contributed to the extinction.
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Since the Kellwasser-related extinctions occurred over such a long time, it is difficult to assign a single cause, and indeed to separate cause from effect. From the end of the Middle Devonian (
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Kaufmann, B.; Trapp, E.; Mezger, K. (2004). "The numerical age of the Upper Frasnian (Upper Devonian) Kellwasser horizons: A new U-Pb zircon date from Steinbruch Schmidt(Kellerwald, Germany)".
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The "greening" of the continents during the Silurian-Devonian Terrestrial Revolution that led to them being covered with massive photosynthesizing land plants in the first forests reduced CO
6363:"Photic-zone euxinia and anoxic events in a Middle-Late Devonian shelfal sea of Panthalassan continental margin, NW Canada: Changing paradigm of Devonian ocean and sea level fluctuations" 4180:
Da Silva, Anne-Christine; Sinesael, Matthias; Claeys, Philippe; Davies, Joshua H. M. L.; De Winter, Niels J.; Percival, L. M. E.; Schaltegger, Urs; De Vleeschouwer, David (31 July 2020).
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and manticoceratids devastated. Following the Kellwasser event, reefs of the Famennian were primarily dominated by siliceous sponges and calcifying bacteria, producing structures such as
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Joachimski, Michael M.; Ostertag-Henning, Christian; Pancost, Richard D.; Strauss, Harald; Freeman, Katherine H.; Littke, Ralf; Sinninghe Damsté, Jaap S.; Racki, Grzegorz (1 May 2001).
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would have caused global cooling and resulted in at least one period of late Devonian glaciation (and subsequent sea level fall), probably fluctuating in intensity alongside the 40ka
3833:"Relationships between bacterial-algal proliferating and mass extinction in the Late Devonian Frasnian-Famennian transition: Enlightening from carbon isotopes and molecular fossils" 3613:"Silurian-Devonian terrestrial revolution in South China: Taxonomy, diversity, and character evolution of vascular plants in a paleogeographically isolated, low-latitude region" 5412:
Ricci, J.; et al. (2013). "New Ar/Ar and K–Ar ages of the Viluy traps (Eastern Siberia): Further evidence for a relationship with the Frasnian–Famennian mass extinction".
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Balter, Vincent; Renaud, Sabrina; Girard, Catherine; Joachimski, Michael M. (November 2008). "Record of climate-driven morphological changes in 376 Ma Devonian fossils".
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associated with the onset of anoxic deposits; marine transgressions likely helped spread deoxygenated waters. Evidence exists for the modulation of the intensity of anoxia by
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Clemens, J. D.; Birch, W. D. (2012). "Assembly of a zoned volcanic magma chamber from multiple magma batches: The Cerberean Cauldron, Marysville Igneous Complex, Australia".
1506:, sea-level change, and oceanic overturning. These have all been discounted because they are unable to explain the duration, selectivity, and periodicity of the extinctions. 5271:
Ma, X. P.; et al. (2015). "The Late Devonian Frasnian–Famennian event in South China — Patterns and causes of extinctions, sea level changes, and isotope variations".
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Fields, Brian D.; Melott, Adrian L.; Ellis, John; Ertel, Adrienne F.; Fry, Brian J.; Lieberman, Bruce S.; Liu, Zhenghai; Miller, Jesse A.; Thomas, Brian C. (2020-08-18).
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and the Kellwasser extinction by Ar/Ar dating. Ages show that the two volcanic phase hypotheses are well supported and the weighted mean ages of each volcanic phase are
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Algeo, T. J. (1998). "Terrestrial-marine teleconnections in the Devonian: links between the evolution of land plants, weathering processes, and marine anoxic events".
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Kaiho, Kunio; Miura, Mami; Tezuka, Mio; Hayashi, Naohiro; Jones, David S.; Oikawa, Kazuma; Casier, Jean-Georges; Fujibayashi, Megumu; Chen, Zhong-Qiang (April 2021).
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Gurung, Khushboo; Field, Katie J.; Batterman, Sarah J.; Goddéris, Yves; Donnadieu, Yannick; Porada, Philipp; Taylor, Lyla L.; Mills, Benjamin J. W. (4 August 2022).
168:, which collectively represent one of the five largest mass extinction events in the history of life on Earth. The term primarily refers to a major extinction, the 3955:"Water column anoxia, enhanced productivity and concomitant changes in δ13C and δ34S across the Frasnian–Famennian boundary (Kowala — Holy Cross Mountains/Poland)" 4940:"Mountain building-enhanced continental weathering and organic carbon burial as major causes for climatic cooling at the Frasnian–Famennian boundary (c. 376 Ma)?" 2907: 6026: 192:, also known as the end-Devonian extinction, occurred 359 million years ago, bringing an end to the Famennian and Devonian, as the world transitioned into the 1451:
impacts can be dramatic triggers of mass extinctions. An asteroid impact was proposed as the prime cause of this faunal turnover. The impact that created the
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that cover more than 320,000 km, and a gigantic amount of magmatic material (more than 1 million km) formed in the Viluy branch. The Viluy and
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The most hard-hit biological category affected by the Kellwasser event were the calcite-based reef-builders of the great Devonian reef-systems, including the
2181:"Late Devonian and Early Mississippian Bakken and Exshaw Black Shale Source Rocks, Western Canada Sedimentary Basin: A Sequence Stratigraphic Interpretation" 344: 3050:"Five hundred million years of extinction and recovery: a phanerozoic survey of large-scale diversity patterns in fishes: EXTINCTION AND RECOVERY IN FISHES" 5681:"Laser argon dating of melt breccias from the Siljan impact structure, Sweden: Implications for a possible relationship to Late Devonian extinction events" 3895:"Enhanced terrestrial nutrient release during the Devonian emergence and expansion of forests: Evidence from lacustrine phosphorus and geochemical records" 1176:
as well. Negative δU excursions concomitant with both the Lower and Upper Kellwasser events provide direct evidence for an increase in anoxia. Photic zone
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deposition. Viluy Traps activity may have also enabled euxinia by fertilising the oceans with sulphate, increasing rates of microbial sulphate reduction.
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Courtillot, V.; et al. (2010). "Preliminary dating of the Viluy traps (Eastern Siberia): Eruption at the time of Late Devonian extinction events?".
2124: 3280: 7581: 6523: 4368:"Mercury isotope evidence for recurrent photic-zone euxinia triggered by enhanced terrestrial nutrient inputs during the Late Devonian mass extinction" 1187:
The timing, magnitude, and causes of Kellwasser anoxia remain poorly understood. Anoxia was not omnipresent across the globe; in some regions, such as
5564: 1023:(defined as four-limbed vertebrates with digits) survived and experienced an evolutionary radiation following the Kellwasser extinction, though their 6269: 5983: 5273: 5054: 4903: 4703: 4542: 4438: 4145: 4055: 3333: 2998: 2804: 2724: 1976: 1758: 287:
were hit hard by the Kellwasser event and completely died out in the Hangenberg event, but most other jawed vertebrates were less strongly impacted.
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in one or more end-Devonian extinction strata would confirm a supernova origin. However, there is currently no direct evidence for this hypothesis.
4642: 3107: 263:; the latter almost completely disappeared. The causes of these extinctions are unclear. Leading hypotheses include changes in sea level and ocean 5901: 4051:"A new model for the Kellwasser Anoxia Events (Late Devonian): Shallow water anoxia in an open oceanic setting in the Central Asian Orogenic Belt" 2079:"Shale oil and gas resources in organic pores of the Devonian Duvernay Shale, Western Canada Sedimentary Basin based on petroleum system modeling" 6447:
Racki, Grzegorz, "Toward understanding Late Devonian global events: few answers, many questions" in Jeff Over, Jared Morrow, P. Wignall (eds.),
5302:"Sulfur isotope evidence for low and fluctuating sulfate levels in the Late Devonian ocean and the potential link with the mass extinction event" 3329:"Strategies of survival during extreme environmental perturbations: evolution of conodonts in response to the Kellwasser crisis (Upper Devonian)" 1405: Ma proposed for the Kellwasser event. However, the second volcanic phase is slightly older than Hangenberg event, which is dated to around 2396:"Terrestrial-marine teleconnections in the Devonian: links between the evolution of land plants, weathering processes, and marine anoxic events" 7464: 5948:
Wang K, Attrep M, Orth CJ (December 2017). "Global iridium anomaly, mass extinction, and redox change at the Devonian-Carboniferous boundary".
6516: 2125:"A model for porosity evolution in shale reservoirs: An example from the Upper Devonian Duvernay Formation, Western Canada Sedimentary Basin" 6489: 6474: 4643:"Extent and duration of marine anoxia during the Frasnian–Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France" 6464: 5902:"Geochemistry of the Frasnian-Famennian boundary in Belgium: Mass extinction, anoxic oceans and microtektite layer, but not much iridium?" 6316: 6078: 5611:"A volcanic scenario for the Frasnian–Famennian major biotic crisis and other Late Devonian global changes: More answers than questions?" 5106:"Palaeomagnetism of East Siberian traps and kimberlites: two new poles and palaeogeographic reconstructions at about 360 and 250 Ma" 4102: 3233:"The Late Frasnian Kellwasser horizons of the Harz Mountains (Germany): Two oxygen-deficient periods resulting from different mechanisms" 2023:"Paleogeography and paleoenvironments of the Late Devonian Kellwasser event: A review of its sedimentological and geochemical expression" 7521: 2462: 283:
than by an increase in extinctions. This might have been caused by invasions of cosmopolitan species, rather than by any single event.
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Kravchinsky, V.A.; K.M. Konstantinov; V. Courtillot; J.-P. Valet; J.I. Savrasov; S.D. Cherniy; S.G. Mishenin; B.S. Parasotka (2002).
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Le Hir, Guillaume; Donnadieu, Yannick; Goddéris, Yves; Meyer-Berthaud, Brigitte; Ramstein, Gilles; Blakey, Ronald C. (October 2011).
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De Vleeschouwer, David; Rakociński, Michał; Racki, Grzegorz; Bond, David P. G.; Sobień, Katarzyna; Claeys, Philippe (1 March 2013).
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Wang, Pengwei; Chen, Zhuoheng; Jin, Zhijun; Jiang, Chunqing; Sun, Mingliang; Guo, Yingchun; Chen, Xiao; Jia, Zekai (February 2018).
7346: 6678: 4803:"Did climate changes trigger the Late Devonian Kellwasser Crisis? Evidence from a high-resolution conodont record from South China" 1136: 737: 7308: 5979:"Upper Devonian iridium anomalies, conodont zonation and the Frasnian-Famennian boundary in the Canning Basin, Western Australia" 6313:"Devonian stromatoporoid originations, extinctions, and paleobiogeography: how they relate to the Frasnian-Famennian extinction" 3893:
Smart, Matthew S.; Filippelli, Gabriel; Gilhooly III, William P.; Marshall, John E.A.; Whiteside, Jessica H. (9 November 2022).
7448: 7293: 6740: 5503: 5449:"Coronene, mercury, and biomarker data support a link between extinction magnitude and volcanic intensity in the Late Devonian" 3172:
Percival, L. M. E.; Davies, J. H. F. L.; Schaltegger, Urs; De Vleeschouwer, D.; Da Silva, A.-C.; Föllmi, K. B. (22 June 2018).
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in the Devonian Period. Overall, 19% of all families and 50% of all genera became extinct. A second mass extinction called the
82: 1754:"Devonian–Carboniferous Hangenberg mass extinction event, widespread organic-rich mudrock and anoxia: causes and consequences" 1180:, documented by concurrent negative ∆Hg and positive δHg excursions, occurred in the North American Devonian Seaway. Elevated 7406: 7288: 6728: 6431: 6338: 6100: 5148:
Kravchinsky, V. A. (2012). "Paleozoic large igneous provinces of Northern Eurasia: Correlation with mass extinction events".
5024: 4120: 3552:"The Silurian–Devonian terrestrial revolution: Diversity patterns and sampling bias of the vascular plant macrofossil record" 3550:
Capel, Elliot; Cleal, Christopher J.; Xue, Jinzhuang; Monnet, Claude; Servais, Thomas; Cascales-Miñana, Borja (August 2022).
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Sallan, L.; Galimberti, A. K. (2015-11-13). "Body-size reduction in vertebrates following the end-Devonian mass extinction".
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Riquier, Laurent; Tribovillard, Nicolas; Averbuch, Olivier; Devleeschuwer, Xavier; Riboulleau, Armelle (30 September 2006).
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Haddad, Emily E.; Boyer, Diana L.; Droser, Mary L.; Lee, Bridget K.; Lyons, Timothy W.; Love, Gordon D. (15 January 2018).
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Cui, Yixin; Shen, Bing; Sun, Yuanlin; Ma, Haoran; Chang, Jieqiong; Li, Fangbing; Lang, Xianguo; Peng, Yongbo (July 2021).
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Dong, Tian; Harris, Nicholas B.; McMillan, Julia M.; Twemlow, Cory E.; Nassichuk, Brent R.; Bish, David L. (15 May 2019).
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was suggested as a cause of the Late Devonian extinction in 2002. The end of the Devonian Period had extremely widespread
7479: 7228: 5794: 5306: 4855: 4807: 4372: 4309: 4253: 4182:"Anchoring the Late Devonian mass extinction in absolute time by integrating climatic controls and radio-isotopic dating" 1666:
McGhee, George R. Jr, 1996. The Late Devonian Mass Extinction: the Frasnian/Famennian Crisis (Columbia University Press)
1572: 4538:"Ichnofabrics and chemostratigraphy argue against persistent anoxia during the Upper Kellwasser Event in New York State" 1619:"Kellwasser Events and goniatite successions in the Devonian of the Montagne Noire with comments on possible causations" 1158:
The relatively sudden input of nutrients into river water as rooted plants expanded into upland regions may have caused
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McGhee Jr., George R.; Orth, Charles J.; Quintana, Leonard R.; Gilmore, James S.; Olsen, Edward J. (1 September 1986).
5685: 6027:"Late Devonian "Kellwasser Event" mass-extinction horizon in Germany: No geochemical evidence for a large-body impact" 4305:"Global seawater redox trends during the Late Devonian mass extinction detected using U isotopes of marine limestones" 801:
The biota was also very different. Plants, which had been on land in forms similar to mosses and liverworts since the
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Carbon locked in Devonian coal, the earliest of Earth's coal deposits, is currently being returned to the atmosphere.
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between the biotas before and after the Frasnian-Famennian boundary, demonstrating the extinction event's magnitude.
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event in Sweden. Some statistical analysis suggests that the decrease in diversity was caused more by a decrease in
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Averbuch, O.; Tribovillard, N.; Devleeschouwer, X.; Riquier, L.; Mistiaen, B.; Van Vliet-Lanoe, B. (2 March 2005).
3174:"Precisely dating the Frasnian–Famennian boundary: implications for the cause of the Late Devonian mass extinction" 3123:"Late Frasnian--Famennian climates based on palynomorph analyses and the question of the Late Devonian glaciations" 2221:"A high-precision U–Pb age constraint on the Rhynie Chert Konservat-Lagerstätte: time scale and other implications" 1503: 1455:
either was just before the Kellwasser event or coincided with it. Most impact craters, such as the Kellwasser-aged
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van Geldern, R.; Joachimski, M. M.; Day, J.; Jansen, U.; Alvarez, F.; Yolkin, E. A.; Ma, X. -P. (6 October 2006).
7278: 7175: 6704: 5742:"Sedimentary and faunal changes across the frasnian/famennian boundary in the canning basin of Western Australia" 1794: 291:(jawless fish) were in decline long before the end of the Frasnian and were nearly wiped out by the extinctions. 110: 5963: 4772: 3306: 1877: 140:
Comparison of the three episodes of extinction in the Late Devonian (Late D) to other mass extinction events in
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Reimold, Wolf U.; Kelley, Simon P.; Sherlock, Sarah C.; Henkel, Herbert; Koeberl, Christian (26 January 2010).
1515: 6052: 4755:"Conodont apatite δ18O signatures indicate climatic cooling as a trigger of the Late Devonian mass extinction" 7505: 6497: 5680: 3375:
Pier, Jaleigh Q.; Brisson, Sarah K.; Beard, J. Andrew; Hren, Michael T.; Bush, Andrew M. (21 December 2021).
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Brisson, Sarah K.; Pier, Jaleigh Q.; Beard, J. Andrew; Fernandes, Anjali M.; Bush, Andrew M. (5 April 2023).
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and Devonian, land plants, assisted by fungi, underwent a hugely significant phase of evolution known as the
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Carmichael, Sarah K.; Waters, Johnny A.; Suttner, Thomas J.; Kido, Erika; DeReuil, Aubry A. (1 April 2014).
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Carmichael, Sarah K.; Waters, Johnny A.; Königshof, Peter; Suttner, Thomas J.; Kido, Erika (December 2019).
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Understanding Late Devonian and Permian-Triassic Biotic and Climatic Events: Towards an Integrated Approach
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Understanding Late Devonian And Permian-Triassic Biotic and Climatic Events: Towards an Integrated Approach
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Brunton, Ian R.; O’Mahoney, Connor; Fields, Brian D.; Melott, Adrian L.; Thomas, Brian C. (19 April 2023).
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Understanding Late Devonian And Permian-Triassic Biotic and Climatic Events: Towards an Integrated Approach
4104:
Understanding Late Devonian And Permian-Triassic Biotic and Climatic Events: Towards an Integrated Approach
3929:"Late Devonian Oceanic Anoxic Events and Biotic Crises: "Rooted" in the Evolution of Vascular Land Plants?" 2659:"Tabulate Corals after the Frasnian/Famennian Crisis: A Unique Fauna from the Holy Cross Mountains, Poland" 941:
disappeared during this event. The surviving taxa show morphological trends through the event. Atrypid and
130: 35: 6362: 6312: 6264: 6074: 5448: 5049: 4802: 4481: 4138:"The role of sea-level change and marine anoxia in the Frasnian-Famennian (Late Devonian) mass extinction" 4098: 4050: 3954: 3612: 3495: 3328: 3232: 2541: 2078: 2022: 1971: 1795:"GSA Today - Speciation collapse and invasive species dynamics during the Late Devonian "Mass Extinction"" 1753: 7550: 7421: 6367: 5978: 5789: 5615: 5453: 5004: 4003:"Evidence for shallow-water 'Upper Kellwasser' anoxia in the Frasnian–Famennian reefs of Alberta, Canada" 2546: 2331: 2027: 123: 28: 4249:"The astronomical rhythm of Late-Devonian climate change (Kowala section, Holy Cross Mountains, Poland)" 131: 36: 7576: 7069: 4939: 4754: 4580: 2848: 5301: 4698: 4433: 4367: 4248: 2799: 2719: 1972:"Quantitative conodont-based approaches for correlation of the Late Devonian Kellwasser anoxic events" 750:
During the Late Devonian, the continents were arranged differently from today, with a supercontinent,
7411: 6764: 6630: 6129: 5728:
Revised Dating Of Alamo And Some Other Late Devonian Impacts In Relation To Resulting Mass Extinction
1428: 185: 129: 128: 34: 33: 125: 30: 7586: 7443: 7435: 7331: 7039: 6570: 6503: 124: 122: 29: 27: 2483:
Neil H. Shubin, Edward B. Daeschler and Farish A. Jenkins Jr (6 April 2006). "The pectoral fin of
132: 127: 37: 32: 7381: 6594: 6486: 4850: 4482:"A pulse of seafloor oxygenation at the Late Devonian Frasnian-Famennian boundary in South China" 4099:"Evidence for Late Devonian (Kellwasser) anoxic events in the Great Basin, Western United States" 3611:
Xue, Jinzhuang; Huang, Pu; Wang, Deming; Xiong, Conghui; Liu, Le; Basinger, James F. (May 2018).
3054: 2849:"Microbial mounds prior to the Frasnian-Famennian mass extinctions, Hantang, Guilin, South China" 2542:"Astronomical climate changes trigger Late Devonian bio- and environmental events in South China" 1241: 1076: 5837: 5790:"Microtektite-like impact glass associated with the Frasnian-Famennian boundary mass extinction" 5741: 2198: 54: 7248: 7200: 6461: 1856: 6479: 7371: 7326: 7205: 7094: 7084: 6690: 5185: 4707:. Evolution of the System Earth in the Late Palaeozoic: Clues from Sedimentary Geochemistry. 4486: 4434:"A multiproxy analysis of the Frasnian-Famennian transition in western New York State, U.S.A" 4002: 3710: 3617: 3556: 3441: 3127: 1913:"End-Devonian extinction and a bottleneck in the early evolution of modern jawed vertebrates" 1005:
only barely survived, succumbing early in the Famennian. Among freshwater and shallow marine
6421: 5807: 5740:
Becker, R. Thomas; House, Michael R.; Kirchgasser, William T.; Playford, Phillip E. (1991).
5319: 4899:"Evidence for long-term climate change in Upper Devonian strata of the central Appalachians" 4868: 4385: 4322: 4266: 4107:. Developments in Palaeontology and Stratigraphy. Vol. 20. Elsevier. pp. 225–262. 2482: 2438: 2312: 2220: 1155:, the chemical breakdown of rocks, releasing ions which are nutrients for plants and algae. 835:. Fish were also undergoing a huge radiation, and tetrapodomorphs, such as the Frasnian-age 7474: 7243: 7233: 7190: 6376: 6278: 6209: 6148: 6040: 5992: 5851: 5803: 5755: 5727: 5624: 5576: 5563:
Racki, Grzegorz; Rakociński, Michał; Marynowski, Leszek; Wignall, Paul B. (26 April 2018).
5537: 5462: 5421: 5383: 5315: 5224: 5194: 5153: 5117: 5063: 4953: 4944: 4912: 4864: 4712: 4656: 4592: 4551: 4495: 4381: 4318: 4262: 4195: 4154: 4064: 4016: 3968: 3844: 3787: 3719: 3626: 3565: 3509: 3450: 3390: 3342: 3294: 3246: 3187: 3136: 3007: 2966: 2860: 2813: 2733: 2672: 2603: 2555: 2498: 2343: 2259: 2138: 2090: 2036: 1985: 1924: 1865: 1831: 1767: 1710: 1470:
have been speculated as possible drivers of mass extinctions due to their ability to cause
1467: 1192: 1169: 971: 949:, whose spiny shells made them more resistant to predation and environmental disturbances. 200: 5565:"Mercury enrichments and the Frasnian-Famennian biotic crisis: A volcanic trigger proved?" 5103: 1427:
Another overlooked contributor to the Kellwasser mass extinction could be the now extinct
8: 7540: 7303: 7185: 7180: 7170: 7089: 7032: 4647: 3774:"Mid-Devonian Archaeopteris Roots Signal Revolutionary Change in Earliest Fossil Forests" 1456: 1314: 1173: 759: 66: 6380: 6282: 6213: 6152: 6044: 5996: 5855: 5759: 5628: 5580: 5541: 5466: 5425: 5387: 5198: 5157: 5121: 5067: 4957: 4916: 4716: 4660: 4596: 4555: 4499: 4199: 4158: 4068: 4020: 4001:
Bond, David P. G.; Zatoń, Michał; Wignall, Paul B.; Marynowski, Leszek (11 March 2013).
3972: 3848: 3791: 3723: 3630: 3569: 3513: 3454: 3394: 3346: 3298: 3250: 3191: 3140: 3011: 2970: 2929: 2902: 2864: 2817: 2737: 2676: 2607: 2559: 2502: 2347: 2263: 2142: 2094: 2040: 1989: 1928: 1869: 1771: 1714: 958:, and thus with the sea water temperature; this may relate to their occupying different 6392: 6240: 6199: 6185: 6138: 5875: 5746: 5702: 5698: 5652: 5478: 5349: 5079: 5030: 5016: 4969: 4824: 4672: 4616: 4511: 4407: 4344: 4229: 4216: 4186: 4181: 3868: 3813: 3753: 3740: 3705: 3680: 3593: 3525: 3471: 3436: 3411: 3381: 3377:"Accelerated mass extinction in an isolated biota during Late Devonian climate changes" 3376: 3208: 3178: 3173: 3101: 3073: 2876: 2695: 2658: 2634: 2590:"Devonian geoheritage of Siberia: A case of the northwestern Kemerovo region of Russia" 2589: 2522: 2454: 2422: 2395: 2359: 2154: 2052: 1947: 1912: 1881: 1734: 1567: 1225: 787: 783: 6330: 6290: 6092: 4112: 3980: 3927:
Algeo, T.J.; Berner, R.A.; Maynard, J.B.; Scheckler, S.E.; Archives, G.S.A.T. (1995).
3354: 3148: 2993: 2825: 2745: 1779: 721: 7510: 7396: 7386: 7139: 7099: 6606: 6427: 6396: 6334: 6245: 6227: 6166: 6096: 6031: 6004: 5950: 5921: 5867: 5842: 5815: 5656: 5482: 5341: 5244: 5130: 5105: 5083: 5034: 5020: 4973: 4965: 4898: 4828: 4776: 4759: 4728: 4608: 4604: 4515: 4455: 4411: 4399: 4348: 4336: 4303:
White, David A.; Elrick, Maya; Romaniello, Stephen; Zhang, Feifei (1 December 2018).
4278: 4233: 4221: 4116: 3872: 3860: 3817: 3805: 3757: 3745: 3597: 3529: 3500: 3476: 3416: 3285: 3213: 3068: 3049: 3023: 3019: 2994:"Paleolatitudes in the Devonian of Brazil and the Frasnian-Famennian mass extinction" 2957: 2934: 2880: 2872: 2829: 2749: 2700: 2639: 2621: 2514: 2458: 2158: 2056: 1952: 1738: 1726: 1667: 1618: 1589: 1420: 1069: 775: 6388: 5879: 5706: 5637: 5610: 5474: 5395: 5353: 5206: 5165: 4676: 4620: 4507: 3638: 3578: 3551: 3281:"Anoxic events in the late Frasnian—Causes of the Frasnian-Famennian faunal crisis?" 3077: 2774: 2567: 2363: 2048: 1885: 7515: 7263: 7238: 7195: 7165: 7114: 7109: 6539: 6384: 6326: 6286: 6235: 6217: 6156: 6088: 6048: 6000: 5959: 5913: 5859: 5811: 5763: 5694: 5642: 5632: 5584: 5545: 5470: 5429: 5391: 5331: 5323: 5282: 5236: 5202: 5161: 5125: 5071: 5012: 4961: 4920: 4872: 4816: 4768: 4720: 4699:"Carbon, oxygen and strontium isotope records of Devonian brachiopod shell calcite" 4664: 4600: 4559: 4503: 4447: 4389: 4326: 4270: 4211: 4203: 4162: 4137: 4108: 4072: 4024: 3976: 3959: 3928: 3926: 3902: 3852: 3795: 3735: 3727: 3684: 3676: 3634: 3583: 3573: 3517: 3466: 3458: 3406: 3398: 3350: 3302: 3254: 3237: 3203: 3195: 3152: 3144: 3063: 3015: 2974: 2924: 2916: 2903:"Niche conservatism and ecological change during the Late Devonian mass extinction" 2868: 2821: 2741: 2690: 2680: 2629: 2611: 2563: 2526: 2506: 2489: 2446: 2417: 2409: 2351: 2294: 2267: 2232: 2194: 2146: 2098: 2044: 1993: 1942: 1932: 1873: 1775: 1718: 1581: 1479: 1278: 1274: 1270: 1244:
during the Famennian, which has been suggested as a cause of the Hangenberg event.
1164: 1048: 659: 232: 189: 158: 141: 5863: 5838:"Microtektites and Mass Extinctions: Evidence for a Late Devonian Asteroid Impact" 5050:"Global events of the Late Paleozoic (Early Devonian to Middle Permian): A review" 3258: 2616: 1273:. The continued drawdown of organic carbon eventually pulled the Earth out of its 7223: 7160: 6493: 6468: 5549: 5433: 5286: 5075: 4924: 4896: 4724: 4564: 4537: 4451: 4166: 4076: 3831:
Gong, Yiming; Xu, Ran; Tang, Zhongdao; Si, Yuanlan; Li, Baohua (1 October 2005).
3778: 2685: 1997: 1838: 1471: 1362: 1302: 1208:
excursion is observed across the Frasnian-Famennian boundary in brachiopods from
1010: 1006: 981: 818: 540: 165: 16:
One of the five most severe extinction events in the history of the Earth's biota
2102: 858: 7376: 7351: 6191:
Proceedings of the National Academy of Sciences of the United States of America
6161: 6124: 5836:
Claeys, Philippe; Casier, Jean-Georges; Margolis, Stanley V. (21 August 1992).
5327: 5048:
Qie, Wenkun; Algeo, Thomas J.; Luo, Genming; Herrmann, Achim (1 October 2019).
4876: 4820: 4394: 4331: 4304: 4274: 4207: 3731: 3462: 3402: 3199: 2588:
Gutak, Jaroslav M.; Ruban, Dmitry A.; Ermolaev, Vladimir A. (1 February 2023).
1568:"Devonian climate change, breathing, and the origin of the tetrapod stem group" 1327: 1319: 1310: 1306: 1293: 1159: 871: 863: 531: 268: 7416: 5917: 5767: 5647: 5240: 4668: 3800: 3773: 3588: 3120: 2236: 1534:
The species estimate is the toughest to assess and most likely to be adjusted.
7565: 7253: 7104: 7079: 6832: 6231: 6170: 5345: 4780: 4732: 4459: 4403: 4340: 4282: 3864: 3521: 3090: 3027: 2833: 2753: 2625: 2185: 2129: 1487: 1436: 1209: 1146: 1132: 1056: 959: 942: 894: 886: 832: 829: 811: 549: 522: 303: 193: 162: 6222: 5181: 3832: 1937: 1722: 984:. They were among the vertebrates which died out due to the Kellwasser event 7495: 7074: 6449:
Understanding Late Devonian and Permian-Triassic Biotic and Climatic Events
6249: 5871: 4612: 4225: 3809: 3749: 3706:"Climate windows of opportunity for plant expansion during the Phanerozoic" 3480: 3420: 3217: 3122: 2938: 2920: 2704: 2643: 2518: 2413: 2355: 2298: 1956: 1730: 1683: 1593: 1483: 1347: 1080: 1052: 1036: 998: 898: 825: 795: 641: 295: 264: 176:, which occurred around 372 million years ago, at the boundary between the 3689: 3604: 2657:
Zapalski, Mikołaj K.; Berkowski, Błażej; Wrzołek, Tomasz (23 March 2016).
1068:
severe. The Kellwasser event was preceded by a longer period of prolonged
7356: 7341: 7124: 5336: 4937: 2450: 1585: 1452: 1397: Ma, which the first volcanic phase is in agreement with the age of 1262: 1188: 990: 934: 791: 779: 276: 248: 47: 3952: 3230: 3171: 2540:
Ma, Kunyuan; Hinnov, Linda; Zhang, Xinsong; Gong, Yiming (August 2022).
2510: 2150: 1139:. Their maximum height went from 30 cm at the start of the Devonian, to 7055: 6895: 6868: 6805: 5900:
Claeys, P.; Kyte, F. T.; Herbosch, A.; Casier, J.-G. (1 January 1996).
4581:"Late Devonian marine anoxia challenged by benthic cyanobacterial mats" 3157: 1357:
Recent studies have confirmed a correlation between Viluy traps in the
1335: 1181: 1152: 1044: 1002: 994: 946: 914: 802: 557: 284: 280: 252: 236: 4851:"The climate change caused by the land plant invasion in the Devonian" 4028: 2978: 2401:
Philosophical Transactions of the Royal Society B: Biological Sciences
2287:
Philosophical Transactions of the Royal Society B: Biological Sciences
275:
or another extraterrestrial body has also been suggested, such as the
7361: 6877: 6787: 6582: 5588: 4848: 4641:
Bond, David P. G.; Wignall, Paul B.; Racki, Grzegorz (1 March 2004).
3907: 3894: 3856: 3543: 3496:"Ordovician-Devonian lichen canopies before evolution of woody trees" 2800:"Reef development at the Frasnian/Famennian mass extinction boundary" 1475: 1343: 1339: 1289: 1015: 989:
the Devonian. Most lingering agnathan (jawless fish) groups, such as
976: 950: 930: 918: 837: 771: 763: 755: 599: 492: 256: 213: 181: 6508: 4801:
Huang, Cheng; Joachimski, Michael M.; Gong, Yiming (1 August 2018).
3437:"Contemporaneous radiations of fungi and plants linked to symbiosis" 7391: 6859: 6850: 6823: 6814: 6796: 6322: 6204: 6143: 6084: 3892: 2720:"Strength, timing, setting and cause of mid-Palaeozoic extinctions" 2663: 2271: 2219:
Parry, S. F.; Noble, S. R.; Crowley, Q. G.; Wellman, C. H. (2011).
1499: 1432: 1416: 1358: 1298: 1020: 938: 926: 922: 890: 879: 821: 806: 751: 592: 585: 578: 512: 502: 260: 240: 209: 205: 177: 4246: 2847:
Shen, Jianwei; Webb, Gregory E.; Qing, Hairuo (16 November 2010).
1852:"Origination, extinction, and mass depletions of marine diversity" 866:
showing laminae and pillars; Columbus Limestone (Devonian) of Ohio
6886: 6841: 6265:"Frasnian–Famennian biotic crisis: undervalued tectonic control?" 5504:"Devonian Mass Extinction: Causes, Facts, Evidence & Animals" 4007: 3094:
Plants Invade the Land: Evolutionary and Environmental Approaches
2594: 1217: 1177: 1084: 1024: 767: 762:
occupied the Northern Hemisphere, while an equatorial continent,
564: 288: 244: 224: 6423:
The Late Devonian Mass Extinction: The Frasnian/Famennian Crisis
5562: 4897:
Brezinski, D.K.; Cecil, C.B.; Skema, V.W.; Kertis, C.A. (2009).
4135: 2020: 1498:
Other mechanisms put forward to explain the extinctions include
1205: 955: 1448: 1047:. A recent survey (McGhee 1996) estimates that 22% of all the ' 875: 571: 299: 220: 6125:"X-Ray-luminous Supernovae: Threats to Terrestrial Biospheres" 5739: 5300:
Sim, Min Sub; Ono, Shuhei; Hurtgen, Matthew T. (1 June 2015).
4696: 4579:
Kazmierczak, J.; Kremer, B.; Racki, Grzegorz (7 August 2012).
144:. Plotted is the extinction intensity, calculated from marine 7024: 6024: 3487: 3121:
Streel, M.; Caputo, M.V.; Loboziak, S.; Melo, J.H.G. (2000).
1351: 1221: 1213: 882: 272: 145: 6122: 4179: 3703: 2954: 1832:
Patterns of extinction and biodiversity in the fossil record
1001:, also went extinct by the end of the Frasnian. The jawless 5964:
10.1130/0091-7613(1993)021<1071:giamea>2.3.co;2
5678: 4773:
10.1130/0091-7613(2002)030<0711:CAOSIC>2.0.CO;2
4048: 3307:
10.1130/0091-7613(1993)021<0675:AEITLF>2.3.CO;2
1878:
10.1666/0094-8373(2004)030<0522:OEAMDO>2.0.CO;2
814: 294:
The extinction event was accompanied by widespread oceanic
228: 6315:. In Over, D. J.; Morrow, J. R.; Wignall, Paul B. (eds.). 6077:. In Over, D. J.; Morrow, J. R.; Wignall, Paul B. (eds.). 5977:
Nicoll, Robert S.; Playford, Phillip E. (September 1993).
4753:
Joachimski, Michael M.; Buggisch, Werner (1 August 2002).
4302: 4101:. In Over, D. J.; Morrow, J. R.; Wignall, Paul B. (eds.). 4000: 3279:
Joachimski, Michael M.; Buggisch, Werner (1 August 1993).
1184:
concentrations further support widespread euxinic waters.
6053:
10.1130/0091-7613(1986)14<776:LDKEMH>2.0.CO;2
5225:"Large igneous provinces and mass extinctions: An update" 4364: 3665:, and further consideration of its phylogenetic position" 2900: 2329: 2122: 1281:
that continued throughout the Carboniferous and Permian.
199:
Although it is well established that there was a massive
5899: 2656: 2218: 1850:
Bambach, R.K.; Knoll, A.H.; Wang, S.C. (December 2004).
5446: 3770: 3327:
Renaud, Sabrina; Girard, Catherine (15 February 1999).
2908:
Proceedings of the Royal Society B: Biological Sciences
1904: 1019:) disappeared at the Frasnian-Famennian boundary. True 6183: 4578: 3433: 2330:
McKerrow, W.S.; Mac Niocaill, C.; Dewey, J.F. (2000).
1617:
Becker, R. Thomas; House, Michael R. (13 March 1986).
5788:
Claeys, Philippe; Casier, Jean-Georges (April 1994).
4890: 2016: 2014: 1334:
into the atmosphere to have generated a destabilised
945:
brachiopods became rarer, replaced in many niches by
219:
By the Late Devonian, the land had been colonized by
5835: 4535: 3374: 2393: 1256:
burial of organic matter to decreased atmospheric CO
5047: 4800: 3549: 2249: 1970:Girard, Catherine; Renaud, Sabrina (25 June 2007). 1561: 1559: 1247:
The weathering of silicate rocks also draws down CO
313: 5906:Special Paper of the Geological Society of America 5011:(2nd ed.). Academic Press. pp. 534–545. 4752: 3278: 3096:. Columbia Univ. Press: New York. pp. 13–236. 2587: 2011: 243:were beginning to converge into what would become 6270:Palaeogeography, Palaeoclimatology, Palaeoecology 6186:"Supernova triggers for end-Devonian extinctions" 5984:Palaeogeography, Palaeoclimatology, Palaeoecology 5730:, 68th Annual Meteoritical Society Meeting (2005) 5521: 5414:Palaeogeography, Palaeoclimatology, Palaeoecology 5274:Palaeogeography, Palaeoclimatology, Palaeoecology 5055:Palaeogeography, Palaeoclimatology, Palaeoecology 4904:Palaeogeography, Palaeoclimatology, Palaeoecology 4704:Palaeogeography, Palaeoclimatology, Palaeoecology 4543:Palaeogeography, Palaeoclimatology, Palaeoecology 4439:Palaeogeography, Palaeoclimatology, Palaeoecology 4146:Palaeogeography, Palaeoclimatology, Palaeoecology 4056:Palaeogeography, Palaeoclimatology, Palaeoecology 3610: 3334:Palaeogeography, Palaeoclimatology, Palaeoecology 2999:Palaeogeography, Palaeoclimatology, Palaeoecology 2805:Palaeogeography, Palaeoclimatology, Palaeoecology 2725:Palaeogeography, Palaeoclimatology, Palaeoecology 2539: 1977:Palaeogeography, Palaeoclimatology, Palaeoecology 1759:Palaeogeography, Palaeoclimatology, Palaeoecology 7563: 4640: 2076: 1897: 1895: 1849: 1700: 1556: 913:Further taxa to be starkly affected include the 841:, were beginning to evolve leg-like structures. 754:, covering much of the Southern Hemisphere. The 6075:"Modelling Late Devonian Extinction Hypotheses" 3427: 2179:Smith, Mark G.; Bustin, R. Marc (1 July 2000). 1917:Proceedings of the National Academy of Sciences 121: 26: 7465:International Union for Conservation of Nature 6500:conference in 2003 reflects current approaches 5976: 5947: 5373: 5007:. In Alderton, David; Elias, Scott A. (eds.). 3047: 2775:"Kellwasser Event | paleontology | Britannica" 2083:Journal of Natural Gas Science and Engineering 1474:. A recent explanation suggests that a nearby 1196:event that intruded into epicontinental seas. 1030: 7040: 6524: 6471:at The Devonian Times. An excellent overview. 5407: 5405: 5299: 5003:Rosa, Eduardo L. M.; Isbell, John L. (2021). 3041: 2278: 1892: 1648: 1646: 736:Subdivision of the Devonian according to the 338: 247:. The extinction seems to have only affected 6360: 6177: 5787: 5527: 4479: 4097:Bond, David P. G.; Wignall, Paul B. (2005). 3922: 3920: 3918: 3830: 3326: 3106:: CS1 maint: multiple names: authors list ( 3048:Friedman, Matt; Sallan, Lauren Cole (2012). 2846: 2389: 2387: 2385: 2383: 2381: 2379: 2377: 2375: 2373: 2243: 1969: 1910: 1751: 5222: 5147: 5143: 5141: 4136:David P. G. Bond; Paul B. Wignalla (2008). 4096: 2319:. International Commission on Stratigraphy. 2199:10.1306/A9673B76-1738-11D7-8645000102C1865D 2178: 1819:Encyclopedia of Global Environmental Change 1752:Caplan, Mark L; Bustin, R.Mark (May 1999). 1616: 743:Vertical axis scale: millions of years ago. 7522:The Sixth Extinction: An Unnatural History 7047: 7033: 6531: 6517: 6072: 5402: 5177: 5175: 5002: 3114: 2231:(4). London: Geological Society: 863–872. 1911:Sallan, L. C.; Coates, M. I. (June 2010). 1643: 1027:are rare until the mid-to-late Famennian. 345: 331: 7582:History of climate variability and change 6239: 6221: 6203: 6160: 6142: 5646: 5636: 5411: 5335: 5270: 5129: 4563: 4393: 4330: 4215: 3915: 3906: 3837:Science in China Series D: Earth Sciences 3799: 3739: 3688: 3587: 3577: 3493: 3470: 3410: 3207: 3156: 3084: 3067: 2950: 2948: 2928: 2694: 2684: 2633: 2615: 2421: 2370: 1946: 1936: 1694: 1478:explosion was the cause for the specific 786:were also growing across what is now the 680: 6426:. Columbia University Press. p. 9. 5218: 5216: 5138: 5097: 4129: 2439:"The fish that crawled out of the water" 2323: 1662: 1660: 1658: 1137:Silurian-Devonian Terrestrial Revolution 1126: 970: 857: 5223:Bond, D. P. G.; Wignall, P. B. (2014). 5172: 1792: 1435:period and thought to have undergone a 908: 805:, had just developed roots, seeds, and 7564: 6419: 2991: 2945: 2797: 2487:and the origin of the tetrapod limb". 2436: 2394:Algeo, T.J.; Scheckler, S. E. (1998). 1624:Courier Forschungsinstitut Senckenberg 1062: 844: 733: 309: 271:or oceanic volcanism. The impact of a 80: 73: 64: 59: 7028: 6538: 6512: 6310: 6262: 5608: 5213: 4360: 4358: 2717: 2284: 2212: 1655: 1566:Clack, Jennifer A. (13 August 2007). 1565: 323: 108: 101: 94: 87: 7546: 6420:McGhee, George R. (1 January 1996). 4431: 3658: 3652: 1612: 1610: 1277:state during the Famennian into the 1075:The Kellwasser event, named for its 711: 693: 670: 649: 631: 316: 52: 44: 7480:Voluntary Human Extinction Movement 7229:Extinction risk from climate change 6361:Kabanov, P.; Jiang, C. (May 2020). 5795:Earth and Planetary Science Letters 5686:Meteoritics & Planetary Science 5376:Earth and Planetary Science Letters 5307:Earth and Planetary Science Letters 4856:Earth and Planetary Science Letters 4808:Earth and Planetary Science Letters 4373:Earth and Planetary Science Letters 4310:Earth and Planetary Science Letters 4254:Earth and Planetary Science Letters 3494:Retallack, Gregory J. (June 2022). 1811: 1573:Integrative and Comparative Biology 1493: 1094: 1039:was more drastic than the familiar 853: 46:Marine extinction intensity during 13: 6263:Racki, Grzegorz (September 1998). 5699:10.1111/j.1945-5100.2005.tb00965.x 5017:10.1016/B978-0-08-102908-4.00063-1 4355: 3681:10.1002/j.1537-2197.1962.tb14953.x 2332:"The Caledonian Orogeny redefined" 1676: 1265:. This reduction in atmospheric CO 1235:levels in the atmosphere. Since CO 117: 22: 14: 7598: 6455: 5110:Geophysical Journal International 2718:House, Michael R (20 June 2002). 2336:Journal of the Geological Society 2225:Journal of the Geological Society 1607: 1199: 7545: 7536: 7535: 7501:Decline in amphibian populations 7470:IUCN Species Survival Commission 7123: 7013:Millions of years before present 6354: 6304: 6256: 6116: 6066: 6018: 5970: 5941: 5131:10.1046/j.0956-540x.2001.01548.x 4966:10.1111/j.1365-3121.2004.00580.x 4605:10.1111/j.1472-4669.2012.00339.x 3069:10.1111/j.1475-4983.2012.01165.x 2873:10.1111/j.1365-3091.2010.01158.x 1342:, causing rapid global cooling, 7176:Human impact on the environment 6389:10.1016/j.gloplacha.2020.103153 5893: 5829: 5781: 5733: 5726:J.R. Morrow and C.A. Sandberg. 5720: 5672: 5663: 5638:10.1016/j.gloplacha.2020.103174 5602: 5556: 5496: 5475:10.1016/j.gloplacha.2021.103452 5440: 5396:10.1016/j.earscirev.2010.06.004 5367: 5293: 5264: 5207:10.1016/j.earscirev.2010.06.004 5166:10.1016/j.gloplacha.2012.01.007 5041: 4996: 4987: 4931: 4842: 4794: 4746: 4690: 4634: 4572: 4529: 4508:10.1016/j.earscirev.2021.103651 4473: 4425: 4296: 4240: 4173: 4090: 4042: 3994: 3946: 3886: 3824: 3764: 3697: 3639:10.1016/j.earscirev.2018.03.004 3579:10.1016/j.earscirev.2022.104085 3368: 3320: 3272: 3224: 3165: 2985: 2894: 2840: 2791: 2767: 2711: 2650: 2581: 2568:10.1016/j.gloplacha.2022.103874 2533: 2476: 2465:from the original on 2006-04-11 2430: 2305: 2172: 2116: 2070: 2049:10.1016/j.gloplacha.2019.102984 1963: 1843: 1824: 1537: 1528: 1443: 204:extinctions at the ends of the 7156:Climate variability and change 7054: 6482:"The Late Devonian Extinction" 6462:Late Devonian mass extinctions 6073:McGhee Jr., George R. (2005). 1786: 1745: 1516:Evolutionary history of plants 966: 778:towards Gondwana, closing the 630: 1: 7506:Decline in insect populations 7449:IUCN Red List extinct species 6498:Geological Society of America 6331:10.1016/S0920-5446(05)80005-6 6291:10.1016/S0031-0182(98)00059-5 6093:10.1016/S0920-5446(05)80003-2 5864:10.1126/science.257.5073.1102 5609:Racki, Grezgorz (June 2020). 4113:10.1016/S0920-5446(05)80009-3 3981:10.1016/S0009-2541(00)00365-X 3355:10.1016/S0031-0182(98)00138-2 3259:10.1016/j.chemgeo.2006.02.021 3149:10.1016/S0012-8252(00)00026-X 2992:Copper, Paul (1 April 1977). 2826:10.1016/S0031-0182(01)00472-2 2746:10.1016/S0031-0182(01)00471-0 2617:10.1016/j.heliyon.2023.e13288 1780:10.1016/S0031-0182(98)00218-1 1550: 1431:which was active in the Late 1051:' of marine animals (largely 174:Frasnian-Famennian extinction 6005:10.1016/0031-0182(93)90123-Z 5816:10.1016/0012-821X(94)90004-3 5550:10.1016/j.lithos.2012.09.007 5434:10.1016/j.palaeo.2013.06.020 5287:10.1016/j.palaeo.2015.10.047 5076:10.1016/j.palaeo.2019.109259 4925:10.1016/j.palaeo.2009.10.010 4725:10.1016/j.palaeo.2006.03.045 4565:10.1016/j.palaeo.2017.10.025 4452:10.1016/j.palaeo.2017.02.032 4432:Lash, Gary G. (1 May 2015). 4167:10.1016/j.palaeo.2008.02.015 4077:10.1016/j.palaeo.2014.02.016 3020:10.1016/0031-0182(77)90020-7 2686:10.1371/journal.pone.0149767 1998:10.1016/j.palaeo.2007.03.007 1830:Sole, R. V., and Newman, M. 1462: 1284: 766:(formed by the collision of 7: 6368:Global and Planetary Change 5616:Global and Planetary Change 5454:Global and Planetary Change 5150:Global and Planetary Change 5005:"Late Paleozoic Glaciation" 2798:Copper, Paul (2002-06-20). 2547:Global and Planetary Change 2103:10.1016/j.jngse.2017.10.027 2028:Global and Planetary Change 1509: 1350:to occur during Kellwasser 1251:from the atmosphere, and CO 1107:), into the Late Devonian ( 1035:The late Devonian crash in 1031:Magnitude of diversity loss 903:Permian-Triassic extinction 734: 487: 318:Devonian graphical timeline 10: 7603: 7070:Background extinction rate 6480:BBC "The Extinction files" 6413: 5328:10.1016/j.epsl.2015.03.009 4877:10.1016/j.epsl.2011.08.042 4821:10.1016/j.epsl.2018.05.016 4395:10.1016/j.epsl.2023.118175 4332:10.1016/j.epsl.2018.09.020 4275:10.1016/j.epsl.2013.01.016 4208:10.1038/s41598-020-69097-6 3732:10.1038/s41467-022-32077-7 3669:American Journal of Botany 3463:10.1038/s41467-018-07849-9 3403:10.1038/s41598-021-03510-6 3200:10.1038/s41598-018-27847-7 251:. Hard-hit groups include 7572:Late Devonian extinctions 7531: 7488: 7457: 7434: 7392:End-Jurassic or Tithonian 7319: 7271: 7262: 7214: 7148: 7132: 7121: 7062: 6932: 6546: 6130:The Astrophysical Journal 5918:10.1130/0-8137-2307-8.491 5768:10.1080/10292389109380400 4669:10.1017/S0016756804008866 3801:10.1016/j.cub.2019.11.067 3659:Beck, C.B. (April 1962). 2237:10.1144/0016-76492010-043 980:, an early air-breathing 885:. It left communities of 231:were built by corals and 227:. In the oceans, massive 7444:Lists of extinct species 6475:Devonian Mass Extinction 6162:10.3847/1538-4357/acc728 3522:10.1016/j.gr.2022.01.010 1793:Stigall, Alycia (2011). 1521: 1009:fish, the tetrapod-like 956:the oxygen isotope ratio 685:Late Devonian extinction 355: 267:, possibly triggered by 155:Late Devonian extinction 6311:Stock, Carl W. (2005). 6223:10.1073/pnas.2013774117 5808:1994E&PSL.122..303C 5320:2015E&PSL.419...52S 5009:Encyclopedia of Geology 4869:2011E&PSL.310..203L 4386:2023E&PSL.61318175Z 4323:2018E&PSL.503...68W 4267:2013E&PSL.365...25D 1938:10.1073/pnas.0914000107 1723:10.1126/science.aac7373 1242:Late Palaeozoic Ice Age 1079:, the Kellwassertal in 478:−360 — 468:−365 — 458:−370 — 448:−375 — 438:−380 — 428:−385 — 418:−390 — 408:−395 — 398:−400 — 388:−405 — 378:−410 — 368:−415 — 358:−420 — 7249:Latent extinction risk 2921:10.1098/rspb.2022.2524 2414:10.1098/rstb.1998.0195 2356:10.1144/jgs.157.6.1149 2299:10.1098/rstb.1998.0195 2252:The Journal of Geology 1821:John Wiley & Sons. 1315:Pripyat-Dnieper-Donets 985: 867: 135: 40: 7206:Paradox of enrichment 7095:Functional extinction 7085:Ecological extinction 5241:10.1130/2014.2505(02) 5186:Earth-Science Reviews 4487:Earth-Science Reviews 3711:Nature Communications 3618:Earth-Science Reviews 3557:Earth-Science Reviews 3442:Nature Communications 3128:Earth-Science Reviews 1468:Near-Earth supernovae 1127:Weathering and anoxia 1059:during the Devonian. 974: 861: 157:consisted of several 134: 61:Millions of years ago 39: 7475:Extinction Rebellion 7417:Pliocene–Pleistocene 7299:Cretaceous–Paleogene 7244:Hypothetical species 7234:Extinction threshold 7191:Overabundant species 6753:Cretaceous–Paleogene 3661:"Reconstructions of 2451:10.1038/news060403-7 2437:Dalton, Rex (2006). 2317:www.stratigraphy.org 1193:Holy Cross Mountains 909:Marine invertebrates 784:Caledonian mountains 664:Famennian glaciation 259:, and reef-building 201:loss of biodiversity 194:Carboniferous Period 172:, also known as the 7402:Cenomanian-Turonian 7347:Cambrian–Ordovician 7279:Ordovician–Silurian 7186:Mutational meltdown 7171:Habitat destruction 7090:Extinct in the wild 6705:Ordovician-Silurian 6679:Cambrian-Ordovician 6619:Cenomanian-Turonian 6381:2020GPC...18803153K 6283:1998PPP...141..177R 6214:2020PNAS..11721008F 6198:(35): 21008–21010. 6153:2023ApJ...947...42B 6045:1986Geo....14..776M 5997:1993PPP...104..105N 5856:1992Sci...257.1102C 5850:(5073): 1102–1104. 5760:1991HBio....5..183B 5669:Digby McLaren, 1969 5629:2020GPC...18903174R 5581:2018Geo....46..543R 5542:2012Litho.155..272C 5467:2021GPC...19903452K 5426:2013PPP...386..531R 5388:2010ESRv..102...29K 5199:2010ESRv..102...29K 5158:2012GPC....86...31K 5122:2002GeoJI.148....1K 5068:2019PPP...53109259Q 4958:2005TeNov..17...25A 4917:2009PPP...284..315B 4717:2006PPP...240...47V 4661:2004GeoM..141..173B 4648:Geological Magazine 4597:2012Gbio...10..371K 4556:2018PPP...490..178H 4500:2021ESRv..21803651C 4200:2020NatSR..1012940D 4159:2008PPP...263..107B 4069:2014PPP...399..394C 4021:2013Letha..46..355B 3973:2001ChGeo.175..109J 3849:2005ScChD..48.1656G 3792:2020CBio...30E.421S 3724:2022NatCo..13.4530G 3631:2018ESRv..180...92X 3570:2022ESRv..23104085C 3514:2022GondR.106..211R 3455:2018NatCo...9.5451L 3395:2021NatSR..1124366P 3347:1999PPP...146...19R 3299:1993Geo....21..675J 3251:2006ChGeo.233..137R 3192:2018NatSR...8.9578P 3141:2000ESRv...52..121S 3012:1977PPP....21..165C 2971:2008Geo....36..907B 2865:2010Sedim..57.1615S 2818:2002PPP...181...27C 2738:2002PPP...181....5H 2677:2016PLoSO..1149767Z 2608:2023Heliy...913288G 2560:2022GPC...21503874M 2511:10.1038/nature04637 2503:2006Natur.440..764S 2348:2000JGSoc.157.1149M 2264:2004JG....112..495K 2151:10.1306/10261817272 2143:2019BAAPG.103.1017D 2095:2018JNGSE..50...33W 2041:2019GPC...18302984C 1990:2007PPP...250..114G 1929:2010PNAS..10710131S 1923:(22): 10131–10135. 1870:2004Pbio...30..522B 1772:1999PPP...148..187C 1715:2015Sci...350..812S 1174:Milankovitch cycles 1063:Duration and timing 845:Extinction patterns 798:rose over America. 310:Late Devonian world 6643:Rainforest collaps 6492:2019-04-08 at the 6467:2020-07-27 at the 6325:. pp. 71–92. 6087:. pp. 37–50. 5747:Historical Biology 5648:20.500.12128/14061 5229:GSA Special Papers 4187:Scientific Reports 3589:20.500.12210/76731 3382:Scientific Reports 3179:Scientific Reports 2779:www.britannica.com 2313:"Chart/Time Scale" 1837:2012-03-14 at the 1799:www.geosociety.org 1586:10.1093/icb/icm055 986: 868: 819:lepidosigillarioid 788:Scottish Highlands 705:shrubs & trees 136: 41: 7577:Extinction events 7559: 7558: 7511:Extinction symbol 7430: 7429: 7294:Triassic–Jurassic 7264:Extinction events 7140:Extinction vortex 7100:Genetic pollution 7022: 7021: 6741:Triassic–Jurassic 6667:Smithian-Spathian 6595:Toarcian turnover 6540:Extinction events 6451:, Elsevier, 2005. 6433:978-0-231-07505-3 6340:978-0-444-52127-9 6102:978-0-444-52127-9 5958:(12): 1071–1074. 5026:978-0-08-102909-1 4122:978-0-444-52127-9 4029:10.1111/let.12014 3843:(10): 1656–1665. 3501:Gondwana Research 2979:10.1130/G24989A.1 2497:(7085): 764–771. 2408:(1365): 113–130. 2293:(1365): 113–130. 1709:(6262): 812–815. 1429:Cerberean Caldera 1070:biodiversity loss 1011:elpistostegalians 748: 747: 729: 728: 710: 709: 692: 691: 669: 668: 648: 647: 159:extinction events 69: 7594: 7549: 7548: 7539: 7538: 7516:Human extinction 7407:Eocene–Oligocene 7289:Permian–Triassic 7269: 7268: 7239:Field of Bullets 7196:Overexploitation 7181:Muller's ratchet 7166:Invasive species 7127: 7115:Pseudoextinction 7110:Local extinction 7049: 7042: 7035: 7026: 7025: 6779: 6774: 6767: 6762: 6755: 6750: 6743: 6738: 6731: 6726: 6719: 6714: 6707: 6702: 6693: 6688: 6681: 6676: 6669: 6664: 6657: 6652: 6645: 6640: 6633: 6628: 6621: 6616: 6609: 6604: 6597: 6592: 6585: 6580: 6573: 6568: 6561: 6556: 6533: 6526: 6519: 6510: 6509: 6444: 6442: 6440: 6408: 6407: 6405: 6403: 6358: 6352: 6351: 6349: 6347: 6321:. 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4631: 4629: 4627: 4576: 4570: 4569: 4567: 4533: 4527: 4526: 4524: 4522: 4477: 4471: 4470: 4468: 4466: 4429: 4423: 4422: 4420: 4418: 4397: 4362: 4353: 4352: 4334: 4300: 4294: 4293: 4291: 4289: 4244: 4238: 4237: 4219: 4177: 4171: 4170: 4153:(3–4): 107–118. 4142: 4133: 4127: 4126: 4094: 4088: 4087: 4085: 4083: 4046: 4040: 4039: 4037: 4035: 3998: 3992: 3991: 3989: 3987: 3967:(1–2): 109–131. 3960:Chemical Geology 3950: 3944: 3943: 3933: 3924: 3913: 3912: 3910: 3908:10.1130/B36384.1 3890: 3884: 3883: 3881: 3879: 3857:10.1360/02yd0346 3828: 3822: 3821: 3803: 3768: 3762: 3761: 3743: 3701: 3695: 3694: 3692: 3656: 3650: 3649: 3647: 3645: 3608: 3602: 3601: 3591: 3581: 3547: 3541: 3540: 3538: 3536: 3491: 3485: 3484: 3474: 3431: 3425: 3424: 3414: 3372: 3366: 3365: 3363: 3361: 3324: 3318: 3317: 3315: 3313: 3276: 3270: 3269: 3267: 3265: 3245:(1–2): 137–155. 3238:Chemical Geology 3228: 3222: 3221: 3211: 3169: 3163: 3162: 3160: 3135:(1–3): 121–173. 3118: 3112: 3111: 3105: 3097: 3088: 3082: 3081: 3071: 3045: 3039: 3038: 3036: 3034: 2989: 2983: 2982: 2952: 2943: 2942: 2932: 2898: 2892: 2891: 2889: 2887: 2859:(7): 1615–1639. 2844: 2838: 2837: 2795: 2789: 2788: 2786: 2785: 2771: 2765: 2764: 2762: 2760: 2715: 2709: 2708: 2698: 2688: 2654: 2648: 2647: 2637: 2619: 2585: 2579: 2578: 2576: 2574: 2537: 2531: 2530: 2485:Tiktaalik roseae 2480: 2474: 2473: 2471: 2470: 2445:: news060403–7. 2434: 2428: 2427: 2425: 2391: 2368: 2367: 2342:(6): 1149–1154. 2327: 2321: 2320: 2309: 2303: 2302: 2282: 2276: 2275: 2247: 2241: 2240: 2216: 2210: 2209: 2207: 2205: 2176: 2170: 2169: 2167: 2165: 2137:(5): 1017–1044. 2120: 2114: 2113: 2111: 2109: 2074: 2068: 2067: 2065: 2063: 2018: 2009: 2008: 2006: 2004: 1984:(1–4): 114–125. 1967: 1961: 1960: 1950: 1940: 1908: 1902: 1899: 1890: 1889: 1847: 1841: 1828: 1822: 1815: 1809: 1808: 1806: 1805: 1790: 1784: 1783: 1749: 1743: 1742: 1698: 1692: 1691: 1680: 1674: 1664: 1653: 1650: 1641: 1640: 1638: 1636: 1614: 1605: 1604: 1602: 1600: 1563: 1544: 1541: 1535: 1532: 1494:Other hypotheses 1480:Hangenberg event 1412: 1410: 1404: 1402: 1396: 1394: 1388: 1386: 1380: 1378: 1372: 1370: 1333: 1271:Milankovic cycle 1142: 1122: 1120: 1114: 1112: 1106: 1104: 1095:Potential causes 1043:that closed the 1041:extinction event 982:elpistostegalian 874:sponges and the 854:Reef destruction 717: 712: 699: 694: 681:Kellwasser event 676: 671: 660:Hangenberg event 655: 650: 637: 632: 552: 543: 534: 515: 495: 484: 479: 474: 469: 464: 459: 454: 449: 444: 439: 434: 429: 424: 419: 414: 409: 404: 399: 394: 389: 384: 379: 374: 369: 364: 359: 347: 340: 333: 327: 314: 190:Hangenberg event 170:Kellwasser event 113: 106: 99: 92: 85: 78: 71: 67: 62: 57: 56: 50: 7602: 7601: 7597: 7596: 7595: 7593: 7592: 7591: 7587:Devonian events 7562: 7561: 7560: 7555: 7527: 7484: 7453: 7436:Extinct species 7426: 7382:Carnian Pluvial 7327:Great Oxidation 7315: 7258: 7224:Extinction debt 7216: 7210: 7161:Genetic erosion 7144: 7128: 7119: 7058: 7053: 7023: 7018: 7017: 7016: 7015: 7014: 7011: 7010: 7009: 7004: 7003: 6998: 6997: 6992: 6991: 6986: 6985: 6980: 6979: 6974: 6973: 6968: 6967: 6962: 6961: 6956: 6955: 6950: 6949: 6944: 6943: 6938: 6937: 6931: 6930: 6929: 6928: 6923: 6922: 6921: 6916: 6915: 6914: 6909: 6908: 6907: 6901: 6900: 6899: 6898: 6891: 6890: 6889: 6882: 6881: 6880: 6873: 6872: 6871: 6864: 6863: 6862: 6855: 6854: 6853: 6846: 6845: 6844: 6837: 6836: 6835: 6828: 6827: 6826: 6819: 6818: 6817: 6810: 6809: 6808: 6801: 6800: 6799: 6792: 6791: 6790: 6782: 6781: 6780: 6775: 6772: 6769: 6768: 6763: 6760: 6757: 6756: 6751: 6748: 6745: 6744: 6739: 6736: 6733: 6732: 6727: 6724: 6721: 6720: 6715: 6712: 6709: 6708: 6703: 6700: 6696: 6695: 6694: 6689: 6686: 6683: 6682: 6677: 6674: 6671: 6670: 6665: 6662: 6659: 6658: 6653: 6650: 6647: 6646: 6641: 6638: 6635: 6634: 6629: 6626: 6623: 6622: 6617: 6614: 6611: 6610: 6605: 6602: 6599: 6598: 6593: 6590: 6587: 6586: 6581: 6578: 6575: 6574: 6569: 6566: 6563: 6562: 6557: 6554: 6542: 6537: 6494:Wayback Machine 6469:Wayback Machine 6458: 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4091: 4081: 4079: 4047: 4043: 4033: 4031: 3999: 3995: 3985: 3983: 3951: 3947: 3931: 3925: 3916: 3891: 3887: 3877: 3875: 3829: 3825: 3779:Current Biology 3769: 3765: 3702: 3698: 3657: 3653: 3643: 3641: 3609: 3605: 3548: 3544: 3534: 3532: 3492: 3488: 3432: 3428: 3373: 3369: 3359: 3357: 3325: 3321: 3311: 3309: 3277: 3273: 3263: 3261: 3229: 3225: 3170: 3166: 3119: 3115: 3099: 3098: 3089: 3085: 3046: 3042: 3032: 3030: 2990: 2986: 2953: 2946: 2899: 2895: 2885: 2883: 2845: 2841: 2796: 2792: 2783: 2781: 2773: 2772: 2768: 2758: 2756: 2716: 2712: 2671:(3): e0149767. 2655: 2651: 2586: 2582: 2572: 2570: 2538: 2534: 2481: 2477: 2468: 2466: 2435: 2431: 2392: 2371: 2328: 2324: 2311: 2310: 2306: 2283: 2279: 2248: 2244: 2217: 2213: 2203: 2201: 2177: 2173: 2163: 2161: 2121: 2117: 2107: 2105: 2075: 2071: 2061: 2059: 2019: 2012: 2002: 2000: 1968: 1964: 1909: 1905: 1900: 1893: 1848: 1844: 1839:Wayback Machine 1829: 1825: 1816: 1812: 1803: 1801: 1791: 1787: 1750: 1746: 1699: 1695: 1682: 1681: 1677: 1665: 1656: 1651: 1644: 1634: 1632: 1615: 1608: 1598: 1596: 1564: 1557: 1553: 1548: 1547: 1542: 1538: 1533: 1529: 1524: 1512: 1496: 1472:ozone depletion 1465: 1446: 1408: 1406: 1400: 1398: 1392: 1390: 1384: 1382: 1376: 1374: 1368: 1366: 1363:Siberian Craton 1331: 1326: 1323: 1303:Siberian Craton 1287: 1268: 1259: 1254: 1250: 1238: 1234: 1220:, Siberia, and 1202: 1165:stromatoporoids 1140: 1129: 1118: 1116: 1110: 1108: 1102: 1100: 1097: 1065: 1057:sampling biases 1033: 969: 911: 862:Side view of a 856: 847: 807:water transport 744: 742: 725: 724: 715: 706: 704: 697: 688: 674: 665: 663: 653: 644: 635: 628: 627: 623: 622: 618: 617: 613: 612: 608: 607: 603: 602: 596: 595: 589: 588: 582: 581: 575: 574: 568: 567: 561: 560: 554: 553: 548: 545: 544: 539: 536: 535: 530: 527: 526: 518: 517: 511: 507: 506: 498: 497: 491: 485: 482: 480: 477: 475: 472: 470: 467: 465: 462: 460: 457: 455: 452: 450: 447: 445: 442: 440: 437: 435: 432: 430: 427: 425: 422: 420: 417: 415: 412: 410: 407: 405: 402: 400: 397: 395: 392: 390: 387: 385: 382: 380: 377: 375: 372: 370: 367: 365: 362: 360: 357: 351: 325: 319: 312: 233:stromatoporoids 151: 150: 149: 142:Earth's history 138: 137: 133: 115: 114: 109: 107: 102: 100: 95: 93: 88: 86: 81: 79: 74: 72: 65: 63: 60: 58: 53: 51: 45: 42: 38: 17: 12: 11: 5: 7600: 7590: 7589: 7584: 7579: 7574: 7557: 7556: 7554: 7553: 7543: 7532: 7529: 7528: 7526: 7525: 7518: 7513: 7508: 7503: 7498: 7492: 7490: 7486: 7485: 7483: 7482: 7477: 7472: 7467: 7461: 7459: 7455: 7454: 7452: 7451: 7446: 7440: 7438: 7432: 7431: 7428: 7427: 7425: 7424: 7419: 7414: 7412:Middle Miocene 7409: 7404: 7399: 7394: 7389: 7384: 7379: 7377:End-Capitanian 7374: 7369: 7364: 7359: 7354: 7349: 7344: 7339: 7334: 7329: 7323: 7321: 7317: 7316: 7314: 7313: 7312: 7311: 7301: 7296: 7291: 7286: 7281: 7275: 7273: 7266: 7260: 7259: 7257: 7256: 7251: 7246: 7241: 7236: 7231: 7226: 7220: 7218: 7212: 7211: 7209: 7208: 7203: 7198: 7193: 7188: 7183: 7178: 7173: 7168: 7163: 7158: 7152: 7150: 7146: 7145: 7143: 7142: 7136: 7134: 7130: 7129: 7122: 7120: 7118: 7117: 7112: 7107: 7102: 7097: 7092: 7087: 7082: 7077: 7072: 7066: 7064: 7060: 7059: 7052: 7051: 7044: 7037: 7029: 7020: 7019: 7012: 7007: 7005: 7001: 6999: 6995: 6993: 6989: 6987: 6983: 6981: 6977: 6975: 6971: 6969: 6965: 6963: 6959: 6957: 6953: 6951: 6947: 6945: 6941: 6939: 6935: 6933: 6926: 6925: 6924: 6919: 6918: 6917: 6912: 6911: 6910: 6906:Neoproterozoic 6905: 6904: 6903: 6902: 6894: 6893: 6892: 6885: 6884: 6883: 6876: 6875: 6874: 6867: 6866: 6865: 6858: 6857: 6856: 6849: 6848: 6847: 6840: 6839: 6838: 6831: 6830: 6829: 6822: 6821: 6820: 6813: 6812: 6811: 6804: 6803: 6802: 6795: 6794: 6793: 6786: 6785: 6784: 6783: 6771: 6770: 6759: 6758: 6747: 6746: 6735: 6734: 6729:Permo-Triassic 6723: 6722: 6711: 6710: 6699: 6698: 6697: 6685: 6684: 6673: 6672: 6661: 6660: 6649: 6648: 6637: 6636: 6631:Middle Miocene 6625: 6624: 6613: 6612: 6601: 6600: 6589: 6588: 6577: 6576: 6571:End-Ediacaran? 6565: 6564: 6553: 6552: 6551: 6550: 6549: 6548: 6547: 6544: 6543: 6536: 6535: 6528: 6521: 6513: 6507: 6506: 6504:PBS: Deep Time 6501: 6483: 6477: 6472: 6457: 6456:External links 6454: 6453: 6452: 6445: 6432: 6415: 6412: 6410: 6409: 6353: 6339: 6303: 6255: 6176: 6115: 6101: 6065: 6039:(9): 776–779. 6017: 5969: 5940: 5926: 5892: 5828: 5780: 5732: 5719: 5693:(4): 591–607. 5671: 5662: 5601: 5575:(6): 543–546. 5555: 5520: 5495: 5439: 5401: 5382:(1–2): 29–59. 5366: 5292: 5263: 5249: 5212: 5171: 5137: 5096: 5040: 5025: 4995: 4986: 4930: 4889: 4841: 4793: 4745: 4689: 4655:(2): 173–193. 4633: 4591:(5): 371–383. 4571: 4528: 4472: 4424: 4354: 4295: 4239: 4172: 4128: 4121: 4089: 4041: 4015:(3): 355–368. 3993: 3945: 3914: 3885: 3823: 3786:(3): 321–331. 3763: 3696: 3690:2027.42/141981 3675:(4): 373–382. 3651: 3603: 3542: 3486: 3426: 3367: 3341:(1–4): 19–32. 3319: 3293:(8): 675–678. 3271: 3223: 3164: 3113: 3083: 3062:(4): 707–742. 3040: 3006:(3): 165–207. 2984: 2944: 2893: 2839: 2790: 2766: 2710: 2649: 2580: 2532: 2475: 2429: 2369: 2322: 2304: 2277: 2272:10.1086/421077 2258:(4): 495–501. 2242: 2211: 2193:(7): 940–960. 2171: 2115: 2069: 2010: 1962: 1903: 1891: 1864:(4): 522–542. 1842: 1823: 1810: 1785: 1766:(4): 187–207. 1744: 1693: 1688:April 8, 2006" 1675: 1654: 1642: 1606: 1580:(4): 510–523. 1554: 1552: 1549: 1546: 1545: 1536: 1526: 1525: 1523: 1520: 1519: 1518: 1511: 1508: 1504:climate change 1495: 1492: 1464: 1461: 1445: 1442: 1361:region on the 1329: 1321: 1301:region on the 1294:trap magmatism 1286: 1283: 1266: 1257: 1252: 1248: 1236: 1232: 1201: 1200:Global cooling 1198: 1170:sea-level rise 1160:eutrophication 1128: 1125: 1096: 1093: 1064: 1061: 1032: 1029: 1007:tetrapodomorph 999:heterostracans 968: 965: 960:trophic levels 910: 907: 872:stromatoporoid 864:stromatoporoid 855: 852: 846: 843: 833:progymnosperms 746: 745: 731: 730: 727: 726: 722:Hunsrück fauna 720: 718: 708: 707: 702: 700: 690: 689: 679: 677: 667: 666: 658: 656: 646: 645: 640: 638: 629: 625: 624: 620: 619: 615: 614: 610: 609: 605: 604: 598: 597: 591: 590: 584: 583: 577: 576: 570: 569: 563: 562: 556: 555: 547: 546: 538: 537: 529: 528: 520: 519: 509: 508: 500: 499: 489: 488: 486: 481: 476: 471: 466: 461: 456: 451: 446: 441: 436: 431: 426: 421: 416: 411: 406: 401: 396: 391: 386: 381: 376: 371: 366: 361: 356: 353: 352: 350: 349: 342: 335: 324: 321: 320: 317: 311: 308: 269:global cooling 184:age, the last 139: 116: 43: 21: 20: 19: 18: 15: 9: 6: 4: 3: 2: 7599: 7588: 7585: 7583: 7580: 7578: 7575: 7573: 7570: 7569: 7567: 7552: 7544: 7542: 7534: 7533: 7530: 7524: 7523: 7519: 7517: 7514: 7512: 7509: 7507: 7504: 7502: 7499: 7497: 7494: 7493: 7491: 7487: 7481: 7478: 7476: 7473: 7471: 7468: 7466: 7463: 7462: 7460: 7458:Organizations 7456: 7450: 7447: 7445: 7442: 7441: 7439: 7437: 7433: 7423: 7420: 7418: 7415: 7413: 7410: 7408: 7405: 7403: 7400: 7398: 7395: 7393: 7390: 7388: 7385: 7383: 7380: 7378: 7375: 7373: 7370: 7368: 7367:Carboniferous 7365: 7363: 7360: 7358: 7355: 7353: 7350: 7348: 7345: 7343: 7340: 7338: 7335: 7333: 7332:End-Ediacaran 7330: 7328: 7325: 7324: 7322: 7318: 7310: 7307: 7306: 7305: 7302: 7300: 7297: 7295: 7292: 7290: 7287: 7285: 7284:Late Devonian 7282: 7280: 7277: 7276: 7274: 7270: 7267: 7265: 7261: 7255: 7254:Living fossil 7252: 7250: 7247: 7245: 7242: 7240: 7237: 7235: 7232: 7230: 7227: 7225: 7222: 7221: 7219: 7213: 7207: 7204: 7202: 7199: 7197: 7194: 7192: 7189: 7187: 7184: 7182: 7179: 7177: 7174: 7172: 7169: 7167: 7164: 7162: 7159: 7157: 7154: 7153: 7151: 7147: 7141: 7138: 7137: 7135: 7131: 7126: 7116: 7113: 7111: 7108: 7106: 7105:Lazarus taxon 7103: 7101: 7098: 7096: 7093: 7091: 7088: 7086: 7083: 7081: 7080:De-extinction 7078: 7076: 7073: 7071: 7068: 7067: 7065: 7061: 7057: 7050: 7045: 7043: 7038: 7036: 7031: 7030: 7027: 6897: 6888: 6879: 6870: 6861: 6852: 6843: 6834: 6833:Carboniferous 6825: 6816: 6807: 6798: 6789: 6778: 6766: 6754: 6742: 6730: 6718: 6717:Late Devonian 6706: 6692: 6680: 6668: 6656: 6644: 6632: 6620: 6608: 6596: 6584: 6572: 6560: 6545: 6541: 6534: 6529: 6527: 6522: 6520: 6515: 6514: 6511: 6505: 6502: 6499: 6495: 6491: 6488: 6484: 6481: 6478: 6476: 6473: 6470: 6466: 6463: 6460: 6459: 6450: 6446: 6435: 6429: 6425: 6424: 6418: 6417: 6398: 6394: 6390: 6386: 6382: 6378: 6374: 6370: 6369: 6364: 6357: 6342: 6336: 6332: 6328: 6324: 6320: 6319: 6314: 6307: 6292: 6288: 6284: 6280: 6276: 6272: 6271: 6266: 6259: 6251: 6247: 6242: 6237: 6233: 6229: 6224: 6219: 6215: 6211: 6206: 6201: 6197: 6193: 6192: 6187: 6180: 6172: 6168: 6163: 6158: 6154: 6150: 6145: 6140: 6136: 6132: 6131: 6126: 6119: 6104: 6098: 6094: 6090: 6086: 6082: 6081: 6076: 6069: 6054: 6050: 6046: 6042: 6038: 6034: 6033: 6028: 6021: 6006: 6002: 5998: 5994: 5990: 5986: 5985: 5980: 5973: 5965: 5961: 5957: 5953: 5952: 5944: 5929: 5927:9780813723075 5923: 5919: 5915: 5911: 5907: 5903: 5896: 5881: 5877: 5873: 5869: 5865: 5861: 5857: 5853: 5849: 5845: 5844: 5839: 5832: 5817: 5813: 5809: 5805: 5801: 5797: 5796: 5791: 5784: 5769: 5765: 5761: 5757: 5753: 5749: 5748: 5743: 5736: 5729: 5723: 5708: 5704: 5700: 5696: 5692: 5688: 5687: 5682: 5675: 5666: 5658: 5654: 5649: 5644: 5639: 5634: 5630: 5626: 5622: 5618: 5617: 5612: 5605: 5590: 5586: 5582: 5578: 5574: 5570: 5566: 5559: 5551: 5547: 5543: 5539: 5535: 5531: 5524: 5509: 5505: 5499: 5484: 5480: 5476: 5472: 5468: 5464: 5460: 5456: 5455: 5450: 5443: 5435: 5431: 5427: 5423: 5419: 5415: 5408: 5406: 5397: 5393: 5389: 5385: 5381: 5377: 5370: 5355: 5351: 5347: 5343: 5338: 5337:1721.1/109433 5333: 5329: 5325: 5321: 5317: 5313: 5309: 5308: 5303: 5296: 5288: 5284: 5280: 5276: 5275: 5267: 5252: 5250:9780813725055 5246: 5242: 5238: 5234: 5230: 5226: 5219: 5217: 5208: 5204: 5200: 5196: 5193:(1–2): 1–33. 5192: 5188: 5187: 5178: 5176: 5167: 5163: 5159: 5155: 5151: 5144: 5142: 5132: 5127: 5123: 5119: 5115: 5111: 5107: 5100: 5085: 5081: 5077: 5073: 5069: 5065: 5061: 5057: 5056: 5051: 5044: 5036: 5032: 5028: 5022: 5018: 5014: 5010: 5006: 4999: 4990: 4975: 4971: 4967: 4963: 4959: 4955: 4951: 4947: 4946: 4941: 4934: 4926: 4922: 4918: 4914: 4910: 4906: 4905: 4900: 4893: 4878: 4874: 4870: 4866: 4862: 4858: 4857: 4852: 4845: 4830: 4826: 4822: 4818: 4814: 4810: 4809: 4804: 4797: 4782: 4778: 4774: 4770: 4766: 4762: 4761: 4756: 4749: 4734: 4730: 4726: 4722: 4718: 4714: 4710: 4706: 4705: 4700: 4693: 4678: 4674: 4670: 4666: 4662: 4658: 4654: 4650: 4649: 4644: 4637: 4622: 4618: 4614: 4610: 4606: 4602: 4598: 4594: 4590: 4586: 4582: 4575: 4566: 4561: 4557: 4553: 4549: 4545: 4544: 4539: 4532: 4517: 4513: 4509: 4505: 4501: 4497: 4493: 4489: 4488: 4483: 4476: 4461: 4457: 4453: 4449: 4445: 4441: 4440: 4435: 4428: 4413: 4409: 4405: 4401: 4396: 4391: 4387: 4383: 4379: 4375: 4374: 4369: 4361: 4359: 4350: 4346: 4342: 4338: 4333: 4328: 4324: 4320: 4316: 4312: 4311: 4306: 4299: 4284: 4280: 4276: 4272: 4268: 4264: 4260: 4256: 4255: 4250: 4243: 4235: 4231: 4227: 4223: 4218: 4213: 4209: 4205: 4201: 4197: 4193: 4189: 4188: 4183: 4176: 4168: 4164: 4160: 4156: 4152: 4148: 4147: 4139: 4132: 4124: 4118: 4114: 4110: 4106: 4105: 4100: 4093: 4078: 4074: 4070: 4066: 4062: 4058: 4057: 4052: 4045: 4030: 4026: 4022: 4018: 4014: 4010: 4009: 4004: 3997: 3982: 3978: 3974: 3970: 3966: 3962: 3961: 3956: 3949: 3941: 3937: 3930: 3923: 3921: 3919: 3909: 3904: 3900: 3896: 3889: 3874: 3870: 3866: 3862: 3858: 3854: 3850: 3846: 3842: 3838: 3834: 3827: 3819: 3815: 3811: 3807: 3802: 3797: 3793: 3789: 3785: 3781: 3780: 3775: 3767: 3759: 3755: 3751: 3747: 3742: 3737: 3733: 3729: 3725: 3721: 3717: 3713: 3712: 3707: 3700: 3691: 3686: 3682: 3678: 3674: 3670: 3666: 3664: 3663:Archaeopteris 3655: 3640: 3636: 3632: 3628: 3624: 3620: 3619: 3614: 3607: 3599: 3595: 3590: 3585: 3580: 3575: 3571: 3567: 3563: 3559: 3558: 3553: 3546: 3531: 3527: 3523: 3519: 3515: 3511: 3507: 3503: 3502: 3497: 3490: 3482: 3478: 3473: 3468: 3464: 3460: 3456: 3452: 3448: 3444: 3443: 3438: 3430: 3422: 3418: 3413: 3408: 3404: 3400: 3396: 3392: 3388: 3384: 3383: 3378: 3371: 3356: 3352: 3348: 3344: 3340: 3336: 3335: 3330: 3323: 3308: 3304: 3300: 3296: 3292: 3288: 3287: 3282: 3275: 3260: 3256: 3252: 3248: 3244: 3240: 3239: 3234: 3227: 3219: 3215: 3210: 3205: 3201: 3197: 3193: 3189: 3185: 3181: 3180: 3175: 3168: 3159: 3154: 3150: 3146: 3142: 3138: 3134: 3130: 3129: 3124: 3117: 3109: 3103: 3095: 3087: 3079: 3075: 3070: 3065: 3061: 3057: 3056: 3055:Palaeontology 3051: 3044: 3029: 3025: 3021: 3017: 3013: 3009: 3005: 3001: 3000: 2995: 2988: 2980: 2976: 2972: 2968: 2964: 2960: 2959: 2951: 2949: 2940: 2936: 2931: 2926: 2922: 2918: 2914: 2910: 2909: 2904: 2897: 2882: 2878: 2874: 2870: 2866: 2862: 2858: 2854: 2853:Sedimentology 2850: 2843: 2835: 2831: 2827: 2823: 2819: 2815: 2811: 2807: 2806: 2801: 2794: 2780: 2776: 2770: 2755: 2751: 2747: 2743: 2739: 2735: 2731: 2727: 2726: 2721: 2714: 2706: 2702: 2697: 2692: 2687: 2682: 2678: 2674: 2670: 2666: 2665: 2660: 2653: 2645: 2641: 2636: 2631: 2627: 2623: 2618: 2613: 2609: 2605: 2602:(2): e13288. 2601: 2597: 2596: 2591: 2584: 2569: 2565: 2561: 2557: 2553: 2549: 2548: 2543: 2536: 2528: 2524: 2520: 2516: 2512: 2508: 2504: 2500: 2496: 2492: 2491: 2486: 2479: 2464: 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January 3312:15 January 3264:15 January 2886:26 January 2784:2023-01-31 2554:: 103874. 2469:2006-04-06 2204:15 January 2164:15 January 2108:15 January 2035:: 102984. 2003:15 January 1804:2021-03-30 1599:15 January 1551:References 1413: Ma. 1336:greenhouse 1307:dyke belts 1275:greenhouse 1182:molybdenum 1153:weathering 1045:Cretaceous 1003:thelodonts 995:galeaspids 951:Trilobites 947:productids 919:trilobites 803:Ordovician 703:Widespread 558:Lochkovian 285:Placoderms 281:speciation 257:trilobites 237:Euramerica 7201:Overshoot 7063:Phenomena 6913:Palæozoic 6878:Paleogene 6788:Ediacaran 6583:Lau event 6397:216294884 6232:0027-8424 6171:0004-637X 6137:(2): 42. 5657:216223745 5513:4 October 5508:Study.com 5483:234364043 5346:0012-821X 5314:: 52–62. 5235:: 29–55. 5084:198423364 5035:226643402 4974:140189725 4829:133886379 4781:0091-7613 4733:0031-0182 4516:235519724 4460:0031-0182 4412:258636301 4404:0012-821X 4349:134806864 4341:0012-821X 4317:: 68–77. 4283:0012-821X 4261:: 25–37. 4234:220881345 3936:GSA Today 3873:130283448 3865:1006-9313 3818:209422168 3758:245030483 3598:249616013 3530:246320087 3102:cite book 3028:0031-0182 2881:140165154 2834:0031-0182 2754:0031-0182 2626:2405-8440 2459:129031187 2159:135341837 2089:: 33–42. 2057:198415606 1739:206640186 1476:supernova 1463:Supernova 1344:sea-level 1340:ecosystem 1290:Magmatism 1285:Volcanism 1261:into the 1021:tetrapods 1016:Tiktaalik 1013:(such as 977:Tiktaalik 931:acritarch 927:conodonts 923:ammonites 891:oncolites 838:Tiktaalik 822:lycopsids 772:Laurentia 764:Laurussia 756:continent 600:Famennian 493:Paleozoic 289:Agnathans 261:organisms 214:Famennian 182:Famennian 7541:Category 7489:See also 7387:Toarcian 7352:Ireviken 7309:Timeline 7304:Holocene 7215:Theories 6927:Cenozoic 6920:Mesozoic 6860:Jurassic 6851:Triassic 6824:Devonian 6815:Silurian 6797:Cambrian 6765:Holocene 6490:Archived 6465:Archived 6323:Elsevier 6250:32817482 6085:Elsevier 6058:19 April 5880:40588088 5872:17840279 5707:23316812 5354:55911895 4677:54575059 4621:42682449 4613:22882315 4226:32737336 3810:31866369 3750:35927259 3481:30575731 3421:34934059 3218:29934550 3078:59423401 2939:37015271 2930:10072939 2915:(1996). 2705:27007689 2664:PLOS ONE 2644:36816259 2519:16598250 2463:Archived 2364:53608809 1957:20479258 1886:17279135 1835:Archived 1731:26564854 1635:19 April 1594:21672860 1510:See also 1502:-driven 1500:tectonic 1433:Devonian 1417:Coronene 1359:Vilyuysk 1299:Vilyuysk 1279:icehouse 1049:families 939:Cystoids 880:tabulate 776:drifting 752:Gondwana 593:Frasnian 586:Givetian 579:Eifelian 513:Devonian 503:Silurian 302:and the 241:Gondwana 210:Frasnian 206:Givetian 178:Frasnian 7551:Commons 7372:Olson's 6887:Neogene 6842:Permian 6691:Olson's 6439:23 July 6414:Sources 6377:Bibcode 6279:Bibcode 6241:7474607 6210:Bibcode 6149:Bibcode 6041:Bibcode 6032:Geology 5993:Bibcode 5951:Geology 5852:Bibcode 5843:Science 5804:Bibcode 5756:Bibcode 5625:Bibcode 5577:Bibcode 5569:Geology 5538:Bibcode 5463:Bibcode 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The 626:  621:  616:  611:  606:  572:Emsian 300:Canada 296:anoxia 265:anoxia 221:plants 216:ages. 212:, and 146:genera 104:Late D 7357:Mulde 7320:Other 7272:Major 6496:": a 6393:S2CID 6200:arXiv 6139:arXiv 5876:S2CID 5703:S2CID 5653:S2CID 5479:S2CID 5350:S2CID 5080:S2CID 5031:S2CID 4970:S2CID 4825:S2CID 4673:S2CID 4617:S2CID 4512:S2CID 4408:S2CID 4345:S2CID 4230:S2CID 4141:(PDF) 3932:(PDF) 3869:S2CID 3814:S2CID 3754:S2CID 3594:S2CID 3526:S2CID 3074:S2CID 2877:S2CID 2523:S2CID 2455:S2CID 2360:S2CID 2155:S2CID 2053:S2CID 1882:S2CID 1735:S2CID 1522:Notes 1457:Alamo 1407:358.9 1399:372.2 1391:363.2 1383:373.4 1375:364.4 1367:376.7 1311:sills 1222:China 1214:Spain 1117:358.9 1109:382.7 1101:382.7 815:ferns 532:Early 273:comet 229:reefs 166:Epoch 6996:−100 6990:−150 6984:−200 6978:−250 6972:−300 6966:−350 6960:−400 6954:−450 6948:−500 6942:−550 6936:−600 6441:2015 6428:ISBN 6404:2023 6348:2023 6335:ISBN 6298:2023 6246:PMID 6228:ISSN 6167:ISSN 6110:2023 6097:ISBN 6060:2023 6012:2023 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