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Carcinosomatidae

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Because of their bodies not being as streamlined as those of many other swimming eurypterids, and on account of the unique morphologies of their telsons, it is considered likely that the carcinosomatids were not very active swimmers, probably adopting a more nektobenthic (swimming near the bottom)
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The internal phylogeny of the Carcinosomatoidea is poorly resolved (unclear). The first cladogram below follows a 2007 study by eurypterid researcher O. Erik Tetlie, which was in turn based on results from various phylogenetic analyses on eurypterids conducted between 2004 and 2007, whereas the
1562:, which had a similar distribution to the carcinosomatids, albeit more successful. Based on the distribution of the pterygotids, it is possible that carcinosomatids ranged worldwide. They are, alongside the pterygotids, the only eurypterid family known from the southern continent of 1592:, where the shovel-like protrusion at the front of its carapace may have been used for digging, or "mud-grubbing", and the swimming paddles were reduced in size compared to those of other carcinosomatids. Given their size, carcinosomatids may have been 919:, on account of incomplete fossil material and an apparent combination of traits from different families, is far from certain within the eurypterid family tree and its fossils may even represent two different genera, mistakenly grouped together. 488:(the posteriormost division of the body) of variable morphology, often curved. In a sense, the carcinosomatids were rather scorpion-like in appearance, and may have contributed to the common name of eurypterids having become 'sea scorpions'. 2641: 956:
in the superfamily 'Hughmillerioidea', on account of the spined limbs and all limbs, with the exception of the swimming paddles, being of a consistent type. The Hughmilleriidae is today regarded as basal members of the superfamily
2594: 497:, there was a distinctive, shovel-shaped protrusion at the front of the carapace. The preabdomen was wide in all species, but the width also differed from species to species. The widest species, relatively speaking, was 381:, in size. Morphologically, carcinosomatids were highly distinct from other eurypterids, known for their powerful and spiny set of forelimbs, a broad and rounded central body and a slender and tubular tail ending in a 1557:
settings, and deeper waters. This is in sharp contrast to their closest relatives, the mixopterids, which are not known from deeper waters. The only other eurypterid family known from deeper waters are the
501:, in which the fourth segment was as wide as the first eight segments combined were long. The spinosity (how many spines) and size of the forelimbs also varied from genus to genus, with the forelimbs of 420:
It is unlikely that the carcinosomatids were strong and active swimmers, given their non-streamlined shape. It is more probable that they were nektobenthic (swimming near the bottom), possibly being
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second cladogram follows a 2015 study by James Lamsdell and colleagues. Both cladograms have been simplified to only display the Carcinosomatoidea. Tetlie (2007) recovered the Carcinosomatidae as a
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There was considerable variety in morphology within the group. The carapace was triangular to subtriangular in shape in all members of the group, through the exact shape could vary. In
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at 2.2 metres (7.2 ft), one of the largest eurypterids of all, with some specimens suggesting that it may even have reached lengths of 2.5 metres (8.2 ft), rivalling
952:. The Carcinosomatoidea also contains the families Mixopteridae and Megalograptidae. Carcinosomatidae was previously, from 1989 to the early 2000s, grouped with the family 2252:
Woodward, Henry (1868). "On some New Species of Crustacea from the Upper Silurian Rocks of Lanarkshire &c.; and further observations on the Structure of Pterygotus".
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Carcinosomatids varied considerably in size, from species only a few centimetres in length to some of the largest known arthropods. The largest carcinosomatid species,
484:), with large swimming paddles, a set of powerful and spiny forelimbs, a broad and rounded preabdomen (central body) and a slender, tubular abdomen, which ended in a 878:
is an authentic fossil and the earliest record of the family. The known geographical range of the carcinosomatids was considerably extended with the discovery of
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was also very small, but it would have exceeded 4 centimetres in length given that its head was 2.05 centimetres (0.8 in) long. It is also possible that
582: 389:, and the group may have helped contribute to the common name of eurypterids becoming 'sea scorpions'. The family contains four, possibly five, genera: 2174: 385:(the posteriormost division of the body) that was typically curved in some way. With these adaptations, the carcinosomatids were quite similar to 3548: 480:
Morphologically, the carcinosomatids were highly distinct among the eurypterids. They were swimming eurypterids (belonging to the suborder
719:. Størmer also introduced the family Carcinosomatidae, initially under the name 'Carcinosomidae', in 1934, to contain the four genera 1957:"Selectivity in the evolution of Palaeozoic arthropod groups, with focus on mass extinctions and radiations: a phylogenetic approach" 2369:"Summary of a revision of New York State Ordovician eurypterids: implications for eurypterid palaeoecology, diversity and evolution" 3535: 3604: 2500:"The oldest described eurypterid: a giant Middle Ordovician (Darriwilian) megalograptid from the Winneshiek Lagerstätte of Iowa" 457:
differed considerably in size depending on the genus and species, though most species were quite large. The largest species was
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Stott, Christopher A.; Tetlie, O. Erik; Braddy, Simon J.; Nowlan, Godfrey S.; Glasser, Paul M.; Devereux, Matthew G. (2005).
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Kjellesvig-Waering, Erik N. (1958). "Some Previously Unknown Morphological Structures of Carcinosoma newlini (Claypole)".
2552: 1992: 3185: 1910: 1902: 589:. The description of the genus was lacking and seemingly based only on the outline and shape of the fossil, which led 3200: 1553:
Carcinosomatid eurypterids were among the most marine eurypterids, known from deposits that were once reefs, some in
2559: 1999: 634:. The name being preoccupied went unnoticed until the 1930s. Also described in the late 19th century was the genus 3444: 3228: 3170: 1626: 2657: 2191: 3218: 3208: 3162: 2572: 2498:
Lamsdell, James C.; Briggs, Derek E. G.; Liu, Huaibao; Witzke, Brian J.; McKay, Robert M. (September 1, 2015).
2016: 1746:"Cope's rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates" 897:, named earlier, was recognised by Jason A. Dunlop and James Lamsdell in 2012 as the valid replacement name of 1539: 3599: 3180: 3175: 137: 3213: 3190: 2008: 792: 3589: 3513: 1359: 1063: 590: 2846: 2738: 1793: 1621: 915:, a problematic eurypterid genus of uncertain affinities, as a basal carcinosomatid. The position of 2407: 1977: 2504: 1140: 646:
in 1890. When Claypole discovered later in 1890 that the name was preoccupied by a genus of modern
577:), described by August R. Grote and William Henry Pitt in 1875 based on fossils recovered from the 375:, reached lengths of at least 2.2 metres (7.2 ft) and rivalled the largest eurypterid of all, 2044: 1827: 3566: 2642:"A new eurypterid (Chelicerata) from the Upper Ordovician of Manitoulin Island, Ontario, Canada" 3475: 3153: 2470:"New vertebrate remains associated with Eurypterids from the Devonian Do Son Formation Vietnam" 2213:"New occurrences of Silurian eurypterids (Carcinosomatidae) in Pennsylvania, Ohio and New York" 1896: 1440: 1116: 643: 368:. They were among the most marine eurypterids, known almost entirely from marine environments. 360:, the family possibly having achieved a worldwide distribution, and range in age from the Late 3561: 3553: 1964: 1929: 829: 715:
in 1934. Størmer substituted the name for the next oldest available non-preoccupied synonym,
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it was flattened, ending in an expanded and segmented structure unseen in other eurypterids.
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Braddy, Simon J.; Tollerton, Victor P.; Racheboeuf, Patrick R.; Schallreuter, Roger (2004).
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was distinct from other eurypterids. Clarke and Ruedemann referred several new species to
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Tetlie, O. Erik (2006). "Eurypterida (Chelicerata) from the Welsh Borderlands, England".
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to be distinct genera, determining the 1912 synonymisation to have been erroneous. Since
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Kjellesvig-Waering, Erik N. (1961). "The Silurian Eurypterida of the Welsh Borderland".
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as a junior synonym. A 2015 phylogenetic analysis by Lamsdell and colleagues recovered
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and all related forms of eurypterids were so great that it was "entirely evident" that
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are also 4 centimetres in length, but the known fossils represent juvenile specimens.
3049: 2982: 2974: 2710: 2705: 2688: 2661: 2614: 2568: 2533: 2421: 2388: 2281: 2269: 2234: 2128: 2086: 2074: 2012: 1906: 1847: 1785: 1767: 1274: 1181: 994: 945: 662: 543: 341: 218: 2673: 2626: 2595:"Morphology, taxonomy, and classification of the order Eurypterida Burmeister, 1843" 2345: 2140: 1933: 1745: 3389: 3103: 3095: 3085: 3077: 3028: 2944: 2893: 2700: 2653: 2606: 2523: 2513: 2413: 2380: 2261: 2224: 2183: 2120: 2064: 2056: 1839: 1775: 1759: 1657: 1576: 820: 666: 631: 586: 547: 538: 493: 407: 309: 1956: 969:
grouping, accounting for basal members of the Carcinosomatoidea, whereas Lamsdell
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in 1859. The earliest genus later seen as a carcinosomatid to be described was
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it was cylindrical and fashioned into a sharp, scorpion-like tail spike and in
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Earth and Environmental Science Transactions of the Royal Society of Edinburgh
2229: 2212: 2124: 1718: 114: 3583: 3341: 3313: 3306: 3278: 3257: 3010: 2949: 2939: 2931: 2885: 2875: 2867: 2823: 2787: 2714: 2665: 2618: 2392: 2273: 2238: 2132: 2078: 2045:"A New Carcinosomatid Eurypterid From The Upper Silurian Of Northern Vietnam" 1851: 1771: 1664: 1593: 1554: 858: 772: 737: 731: 578: 466: 421: 395: 377: 349: 284: 72: 2060: 3299: 3131: 3067: 3023: 2898: 2537: 1843: 1789: 1763: 1636: 1559: 1316: 974: 966: 931: 871: 844:
was preoccupied, Caster and Kjellesvig-Waering, likely unaware of Strand's
756: 627: 470:, the largest eurypterid, in size. The smallest carcinosomatid species was 242: 2417: 2300:"The biota of Upper Silurian submarine channel deposits, Welsh Borderland" 783:, despite the matter having been dealt with by Størmer eight years prior. 3507: 3396: 3373: 3271: 2965: 2858: 2796: 2778: 911: 808: 802: 741:. The family was amended by Erik N. Kjellesvig-Waering in Størmer's 1955 681:, including new species that would later be seen as species of the genus 481: 459: 446: 413: 328: 300: 276: 179: 47: 2561:
Lower Wenlock faunal and floral dynamics – Vattenfallet section, Gotland
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Lower Wenlock faunal and floral dynamics – Vattenfallet section, Gotland
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Thanh, Tống Duy; Janvier, P.; Truong, Đoàn Nhật; Braddy, Simon (1994).
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Comparison of the sizes of the three largest species of the genera
615: 533: 386: 365: 87: 82: 67: 62: 52: 34: 1600:, digging for food or perhaps even burrowing and lying in wait as 1574:. The only carcinosomatid genus known from non-marine deposits is 882:
fossils in Vietnam in the late 20th century, named as the species
856:. Also in 1964, Caster and Kjellesvig-Waering named the new genus 428:, digging for food or perhaps even burrowing and lying in wait as 2689:"The origin of pterygotid eurypterids (Chelicerata: Eurypterida)" 2167:"Distribution and dispersal history of Eurypterida (Chelicerata)" 102: 77: 3527: 1612:
and fish, using their forelimbs to push food into their mouths.
927: 2766: 1828:"Nomenclatural notes on the eurypterid family Carcinosomatidae" 870:. Though most of those specimens have since been identified as 647: 619:
had already been named as a genus of extant (currently living)
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The carcinosomatids are classified as part of the superfamily
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Braddy, Simon J.; Selden, Paul A.; Truong, Doan Nhat (2002).
940:(pictured), were the closest relatives of the carcinosomatids 265: 2658:
10.1666/0022-3360(2005)079[1166:ANECFT]2.0.CO;2
1605: 795:, based on its carapace being different from that of other 357: 513:
it was robust and flattened, curving slightly upwards, in
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Caster, Kenneth E.; Kjellesvig-Waering, Erik N. (1964).
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The earliest carcinosomatid species to be described was
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lifestyle. This lifestyle is especially exemplified in
2449:. In World Spider Catalog. Natural History Museum Bern 2447:
A summary list of fossil spiders and their relatives
509:. The telson varied considerably between genera: in 249: 2550: 2316: 2042: 1990: 1864: 2567:. Geological Survey of Sweden. pp. 121–136. 2175:Palaeogeography, Palaeoclimatology, Palaeoecology 701:, the taxonomical laws of priority dictated that 477:, at 4 centimetres (1.5 in) in length. 3581: 2445:Dunlop, J. A., Penney, D. & Jekel, D. 2018. 2217:The Paleontological Society Special Publications 711:was finally recognised as a preoccupied name by 348:. Fossils of carcinosomatids have been found in 2493: 2491: 2489: 2487: 1894: 601:on the grounds that it was similar in shape to 505:for instance being more powerful than those of 1825: 1743: 2739: 2687:Tetlie, O. Erik; Briggs, Derek E. G. (2009). 2558:. In Laufeld, Sven; Skoglund, Roland (eds.). 2409:25. Eurypterids, Phyllocarids, and Ostracodes 2304:Theses, Leicester University Dept. Of Geology 2160: 2158: 2156: 2154: 2152: 2150: 1998:. In Laufeld, Sven; Skoglund, Roland (eds.). 1826:Dunlop, Jason A.; Lamsdell, James C. (2012). 1744:Lamsdell, James C.; Braddy, Simon J. (2009). 2686: 2484: 1655:The largest fossil specimens of the species 973:. (2015) recovered the carcinosomatids as a 2254:Quarterly Journal of the Geological Society 1895:Clarke, John M.; Ruedemann, Rudolf (1912). 828:When revising the carcinosomatids in 1964, 2746: 2732: 2147: 893:was frequently used by later researchers, 832:and Erik N. Kjellesvig-Waering recognised 113: 2704: 2592: 2527: 2517: 2366: 2228: 2068: 1779: 609:having been reclassified as a species of 2297: 2251: 1538: 926: 801: 528: 439: 2098: 2096: 901:, transferring the species assigned to 862:to account for Ordovician specimens of 852:for the species previously referred to 340:. They were members of the superfamily 3582: 2588: 2586: 2584: 2463: 2461: 2459: 2457: 2455: 2441: 2439: 2437: 2346:"Upper Ordovician eurypterids of Ohio" 2293: 2291: 2210: 2164: 2102: 1934:"Upper Ordovician eurypterids of Ohio" 1932:; Kjellesvig-Waering, Erik N. (1964). 1890: 1888: 775:proposed another replacement name for 669:declared that the differences between 524: 332:, meaning "crab body") is a family of 3474: 3473: 2727: 2680: 2206: 2204: 2038: 2036: 2034: 2032: 2030: 2028: 1954: 1681:would be the smallest carcinosomatid. 744:Treatise on Invertebrate Paleontology 2551:Kjellesvig-Waering, Erik N. (1979). 2544: 2350:Paleontological Research Institution 2093: 1991:Kjellesvig-Waering, Erik N. (1979). 1938:Paleontological Research Institution 1924: 1922: 1821: 1819: 1817: 1815: 1813: 1811: 1809: 1807: 1805: 1803: 1739: 1737: 1735: 1733: 1731: 980: 638:, named alongside its type species, 630:, in 1833 and as such constituted a 2581: 2452: 2434: 2399: 2337: 2310: 2288: 1984: 1885: 751:transferred to their own families ( 411:and possibly the problematic genus 13: 2201: 2025: 1903:University of California Libraries 1673:is a juvenile form of the species 613:). Unbeknownst to Grote and Pitt, 14: 3616: 2266:10.1144/GSL.JGS.1868.024.01-02.36 1919: 1800: 1728: 922: 558:, first described under the name 3456: 3455: 3152: 2706:10.1111/j.1475-4983.2009.00907.x 1858: 1711: 1534: 705:would be the name of the taxon. 136: 45: 3445:Timeline of eurypterid research 2753: 2633: 2360: 2298:Gladwell, David Jeremy (2005). 2245: 1679:Eocarcinosoma batrachophthalmus 1627:Timeline of eurypterid research 3605:Prehistoric arthropod families 1955:James, Lamsdell (2014-05-31). 1948: 1694: 1649: 905:to that genus and designating 848:, coined the replacement name 435: 336:, an extinct group of aquatic 1: 2593:Tollerton, Victor P. (1989). 2412:. Columbia University Press. 2367:Tollerton, Victor P. (2003). 1725:. Retrieved 7 September 2018. 1708:. Retrieved 7 September 2018. 1688: 3595:Ordovician first appearances 2188:10.1016/j.palaeo.2007.05.011 1832:Zoosystematics and Evolution 697:had been named earlier than 689:was sufficiently similar to 323:(the name deriving from the 18:Extinct family of arthropods 7: 2009:Geological Survey of Sweden 1898:The Eurypterida of New York 1615: 793:Nestor Ivanovich Novozhilov 693:to be synonymised. Because 10: 3621: 2211:Ciurca, Samuel J. (1992). 1360:Rhinocarcinosoma vaningeni 1064:Rhinocarcinosoma vaningeni 685:, and also concluded that 3482: 3453: 3432: 3406: 3372: 3242: 3199: 3161: 3150: 3112: 3094: 3076: 3048: 3037: 3009: 2991: 2973: 2962: 2930: 2907: 2884: 2866: 2855: 2847:List of eurypterid genera 2839: 2832: 2761: 2611:10.1017/S0022336000041275 2519:10.1186/s12862-015-0443-9 2385:10.1017/s0263593303000154 2230:10.1017/S2475262200006171 2125:10.1017/S0016756806002536 1622:List of eurypterid genera 1584:(lake) settings as well. 1454: 1437: 1430: 1404: 1387: 1380: 1373: 1356: 1339: 1332: 1314: 1307: 1292: 1285: 1278: 1232: 1178: 1161: 1154: 1137: 1130: 1113: 1096: 1089: 1060: 1043: 1036: 1029: 1012: 1005: 998: 271: 264: 248: 241: 133:Scientific classification 131: 121: 112: 25: 2505:BMC Evolutionary Biology 2165:Tetlie, O. Erik (2007). 1642: 1141:Mixopterus multispinosus 948:, within the infraorder 2646:Journal of Paleontology 2599:Journal of Paleontology 2319:Journal of Paleontology 2061:10.1111/1475-4983.00267 1867:Journal of Paleontology 1675:Carcinosoma scorpioides 1604:. They may have fed on 874:, the type specimen of 650:, he replaced the name 1972:Cite journal requires 1844:10.1002/zoos.201200003 1764:10.1098/rsbl.2009.0700 1550: 1549:on a Silurian seafloor 1441:Eusarcana acrocephalus 1117:Carcinosoma scorpiodes 941: 825: 644:Edward Waller Claypole 573:(and its type species 551: 450: 424:(given their size) or 3562:Paleobiology Database 2418:10.7312/webb12678-026 1794:Supplemental material 1542: 930: 830:Kenneth Edward Caster 805: 556:Carcinosoma punctatum 532: 443: 373:Carcinosoma punctatum 29:Temporal range: Late 3600:Devonian extinctions 2011:. pp. 121–136. 1608:, other arthropods, 1458:Eusarcana scorpionis 1408:Carcinosoma libertyi 1343:Holmipterus suecicus 1165:Mixopterus simonsoni 1100:Carcinosoma scoticus 1047:Eusarcana scorpionis 607:Pterygotus punctatus 603:Eurypterus punctatus 2117:2006GeoM..143..723T 2105:Geological Magazine 1391:Carcinosoma newlini 1016:Carcinosoma newlini 787:was split off from 567:John William Salter 525:History of research 344:, also named after 254:Carcinosoma newlini 2975:Onychopterelloidea 2474:Journal of Geology 1930:Caster, Kenneth E. 1723:www.dictionary.com 1706:www.dictionary.com 1551: 942: 826: 552: 451: 444:Reconstruction of 3590:Carcinosomatoidea 3577: 3576: 3476:Taxon identifiers 3467: 3466: 3148: 3147: 3144: 3143: 3140: 3139: 3096:Adelophthalmoidea 3078:Waeringopteroidea 3050:Carcinosomatoidea 2983:Onychopterellidae 2958: 2957: 2427:978-0-231-50163-7 1667:batrachophthalmus 1531: 1530: 1523: 1522: 1514: 1513: 1505: 1504: 1496: 1495: 1487: 1486: 1478: 1477: 1469: 1468: 1419: 1418: 1275:Carcinosomatoidea 1256: 1255: 1247: 1246: 1229: 1228: 1220: 1219: 1211: 1210: 1202: 1201: 1193: 1192: 1182:Mixopterus kiaeri 1078: 1077: 995:Carcinosomatoidea 946:Carcinosomatoidea 663:John Mason Clarke 583:Buffalo Waterlime 544:John Mason Clarke 342:Carcinosomatoidea 318: 317: 237: 219:Carcinosomatoidea 3612: 3570: 3569: 3557: 3556: 3544: 3543: 3531: 3530: 3518: 3517: 3516: 3514:Carcinosomatidae 3503: 3502: 3501: 3484:Carcinosomatidae 3471: 3470: 3459: 3458: 3433:Related articles 3390:Merostomichnites 3156: 3104:Adelophthalmidae 3086:Waeringopteridae 3058:Carcinosomatidae 3046: 3045: 3029:Strobilopteridae 2971: 2970: 2945:Hibbertopteridae 2894:Parastylonuridae 2864: 2863: 2837: 2836: 2748: 2741: 2734: 2725: 2724: 2719: 2718: 2708: 2699:(5): 1141–1148. 2684: 2678: 2677: 2652:(6): 1166–1174. 2637: 2631: 2630: 2590: 2579: 2578: 2566: 2557: 2548: 2542: 2541: 2531: 2521: 2495: 2482: 2481: 2465: 2450: 2443: 2432: 2431: 2403: 2397: 2396: 2364: 2358: 2357: 2341: 2335: 2334: 2314: 2308: 2307: 2295: 2286: 2285: 2260:(1–2): 289–296. 2249: 2243: 2242: 2232: 2208: 2199: 2198: 2196: 2190:. Archived from 2182:(3–4): 557–574. 2171: 2162: 2145: 2144: 2100: 2091: 2090: 2072: 2040: 2023: 2022: 2006: 1997: 1988: 1982: 1981: 1975: 1970: 1968: 1960: 1952: 1946: 1945: 1926: 1917: 1916: 1892: 1883: 1882: 1862: 1856: 1855: 1823: 1798: 1797: 1783: 1741: 1726: 1715: 1709: 1698: 1682: 1677:, in which case 1671:Eusarcana obesus 1658:Rhinocarcinosoma 1653: 1602:ambush predators 1590:Rhinocarcinosoma 1577:Rhinocarcinosoma 1433: 1432: 1383: 1382: 1376: 1375: 1335: 1334: 1329:Carcinosomatidae 1310: 1309: 1288: 1287: 1281: 1280: 1271: 1270: 1236:Carcinosomatidae 1157: 1156: 1133: 1132: 1092: 1091: 1069: 1039: 1038: 1032: 1031: 1008: 1007: 1001: 1000: 991: 990: 981: 880:Rhinocarcinosoma 821:Rhinocarcinosoma 785:Rhinocarcinosoma 683:Rhinocarcinosoma 667:Rudolf Ruedemann 632:preoccupied name 548:Rudolf Ruedemann 542:, as figured by 539:Rhinocarcinosoma 511:Rhinocarcinosoma 507:Rhinocarcinosoma 499:Eusarcana obesus 494:Rhinocarcinosoma 430:ambush predators 408:Rhinocarcinosoma 321:Carcinosomatidae 310:Rhinocarcinosoma 259:(Claypole, 1890) 251: 235: 232:Carcinosomatidae 230: 217: 204: 191: 141: 140: 117: 107: 44: 26:Carcinosomatidae 23: 22: 3620: 3619: 3615: 3614: 3613: 3611: 3610: 3609: 3580: 3579: 3578: 3573: 3565: 3560: 3552: 3547: 3539: 3534: 3526: 3521: 3512: 3511: 3506: 3497: 3496: 3491: 3478: 3468: 3463: 3449: 3428: 3419:Chasmataspidida 3402: 3368: 3265:Campylocephalus 3238: 3195: 3157: 3136: 3122:Hughmilleriidae 3108: 3090: 3072: 3063:Megalograptidae 3039: 3033: 3019:Dolichopteridae 3005: 2993:Moselopteroidea 2987: 2964: 2954: 2940:Drepanopteridae 2926: 2922:Hardieopteridae 2909:Kokomopteroidea 2903: 2880: 2857: 2851: 2828: 2757: 2752: 2722: 2685: 2681: 2638: 2634: 2591: 2582: 2575: 2564: 2555: 2549: 2545: 2496: 2485: 2466: 2453: 2444: 2435: 2428: 2404: 2400: 2365: 2361: 2342: 2338: 2315: 2311: 2296: 2289: 2250: 2246: 2209: 2202: 2194: 2169: 2163: 2148: 2101: 2094: 2041: 2026: 2019: 2004: 1995: 1989: 1985: 1973: 1971: 1962: 1961: 1953: 1949: 1927: 1920: 1913: 1893: 1886: 1863: 1859: 1824: 1801: 1751:Biology Letters 1742: 1729: 1716: 1712: 1699: 1695: 1691: 1686: 1685: 1654: 1650: 1645: 1632:Megalograptidae 1618: 1537: 1532: 1524: 1515: 1506: 1497: 1488: 1479: 1470: 1420: 1295:Megalograptidae 1257: 1248: 1239: 1238: 1230: 1221: 1212: 1203: 1194: 1079: 1067: 954:Hughmilleriidae 925: 907:Paracarcinosoma 903:Paracarcinosoma 891:Paracarcinosoma 868:Paracarcinosoma 850:Paracarcinosoma 769:Megalograptidae 527: 453:Carcinosomatid 438: 260: 257: 234: 228: 215: 202: 189: 135: 108: 106: 105: 100: 95: 90: 85: 80: 75: 70: 65: 60: 55: 50: 40:449–412.3  39: 38: 27: 19: 12: 11: 5: 3618: 3608: 3607: 3602: 3597: 3592: 3575: 3574: 3572: 3571: 3558: 3545: 3532: 3519: 3504: 3488: 3486: 3480: 3479: 3465: 3464: 3454: 3451: 3450: 3448: 3447: 3442: 3436: 3434: 3430: 3429: 3427: 3426: 3421: 3416: 3410: 3408: 3407:Related groups 3404: 3403: 3401: 3400: 3393: 3386: 3378: 3376: 3370: 3369: 3367: 3366: 3359: 3352: 3345: 3338: 3335:Onychopterella 3331: 3324: 3317: 3310: 3303: 3296: 3293:Hibbertopterus 3289: 3282: 3275: 3268: 3261: 3254: 3251:Adelophthalmus 3246: 3244: 3243:Notable genera 3240: 3239: 3237: 3236: 3231: 3226: 3221: 3216: 3211: 3205: 3203: 3197: 3196: 3194: 3193: 3188: 3183: 3178: 3173: 3167: 3165: 3159: 3158: 3151: 3149: 3146: 3145: 3142: 3141: 3138: 3137: 3135: 3134: 3129: 3124: 3118: 3116: 3114:Pterygotioidea 3110: 3109: 3107: 3106: 3100: 3098: 3092: 3091: 3089: 3088: 3082: 3080: 3074: 3073: 3071: 3070: 3065: 3060: 3054: 3052: 3043: 3041:Diploperculata 3035: 3034: 3032: 3031: 3026: 3021: 3015: 3013: 3007: 3006: 3004: 3003: 3001:Moselopteridae 2997: 2995: 2989: 2988: 2986: 2985: 2979: 2977: 2968: 2960: 2959: 2956: 2955: 2953: 2952: 2947: 2942: 2936: 2934: 2928: 2927: 2925: 2924: 2919: 2917:Kokomopteridae 2913: 2911: 2905: 2904: 2902: 2901: 2896: 2890: 2888: 2882: 2881: 2879: 2878: 2872: 2870: 2868:Rhenopteroidea 2861: 2853: 2852: 2850: 2849: 2843: 2841: 2834: 2830: 2829: 2827: 2826: 2817: 2808: 2799: 2790: 2781: 2775: 2769: 2762: 2759: 2758: 2751: 2750: 2743: 2736: 2728: 2721: 2720: 2679: 2632: 2605:(5): 642–657. 2580: 2573: 2543: 2483: 2451: 2433: 2426: 2398: 2359: 2336: 2325:(2): 295–303. 2309: 2287: 2244: 2200: 2197:on 2011-07-18. 2146: 2111:(5): 723–735. 2092: 2055:(5): 897–915. 2024: 2017: 1983: 1974:|journal= 1947: 1918: 1912:978-1125460221 1911: 1884: 1873:(4): 789–835. 1857: 1799: 1758:(2): 265–269. 1727: 1710: 1692: 1690: 1687: 1684: 1683: 1647: 1646: 1644: 1641: 1640: 1639: 1634: 1629: 1624: 1617: 1614: 1536: 1533: 1529: 1528: 1521: 1520: 1517: 1516: 1512: 1511: 1508: 1507: 1503: 1502: 1499: 1498: 1494: 1493: 1490: 1489: 1485: 1484: 1481: 1480: 1476: 1475: 1472: 1471: 1467: 1466: 1463: 1462: 1453: 1450: 1449: 1446: 1445: 1436: 1431: 1429: 1426: 1425: 1422: 1421: 1417: 1416: 1413: 1412: 1403: 1400: 1399: 1396: 1395: 1386: 1381: 1379: 1374: 1372: 1369: 1368: 1365: 1364: 1355: 1352: 1351: 1348: 1347: 1338: 1333: 1331: 1325: 1324: 1321: 1320: 1313: 1308: 1306: 1303: 1302: 1299: 1298: 1291: 1286: 1284: 1279: 1277: 1269: 1258: 1254: 1253: 1250: 1249: 1245: 1244: 1241: 1240: 1234: 1233: 1231: 1227: 1226: 1223: 1222: 1218: 1217: 1214: 1213: 1209: 1208: 1205: 1204: 1200: 1199: 1196: 1195: 1191: 1190: 1187: 1186: 1177: 1174: 1173: 1170: 1169: 1160: 1155: 1153: 1150: 1149: 1146: 1145: 1136: 1131: 1129: 1126: 1125: 1122: 1121: 1112: 1109: 1108: 1105: 1104: 1095: 1090: 1088: 1085: 1084: 1081: 1080: 1076: 1075: 1072: 1071: 1059: 1056: 1055: 1052: 1051: 1042: 1037: 1035: 1030: 1028: 1025: 1024: 1021: 1020: 1011: 1006: 1004: 999: 997: 989: 979: 959:Pterygotioidea 950:Diploperculata 924: 923:Classification 921: 654:with the name 626:of the family 591:Henry Woodward 587:New York State 526: 523: 437: 434: 316: 315: 314: 313: 305: 296: 288: 280: 269: 268: 262: 261: 258: 246: 245: 239: 238: 226: 222: 221: 213: 209: 208: 206:Diploperculata 200: 196: 195: 187: 183: 182: 177: 173: 172: 167: 163: 162: 157: 153: 152: 147: 143: 142: 129: 128: 119: 118: 110: 109: 101: 96: 91: 86: 81: 76: 71: 66: 61: 56: 51: 46: 28: 17: 9: 6: 4: 3: 2: 3617: 3606: 3603: 3601: 3598: 3596: 3593: 3591: 3588: 3587: 3585: 3568: 3563: 3559: 3555: 3550: 3546: 3542: 3537: 3533: 3529: 3524: 3520: 3515: 3509: 3505: 3500: 3494: 3490: 3489: 3487: 3485: 3481: 3477: 3472: 3462: 3452: 3446: 3443: 3441: 3438: 3437: 3435: 3431: 3425: 3422: 3420: 3417: 3415: 3412: 3411: 3409: 3405: 3399: 3398: 3394: 3392: 3391: 3387: 3385: 3384: 3380: 3379: 3377: 3375: 3371: 3365: 3364: 3360: 3358: 3357: 3353: 3351: 3350: 3346: 3344: 3343: 3342:Pentecopterus 3339: 3337: 3336: 3332: 3330: 3329: 3325: 3323: 3322: 3318: 3316: 3315: 3314:Megalograptus 3311: 3309: 3308: 3307:Jaekelopterus 3304: 3302: 3301: 3297: 3295: 3294: 3290: 3288: 3287: 3283: 3281: 3280: 3279:Drepanopterus 3276: 3274: 3273: 3269: 3267: 3266: 3262: 3260: 3259: 3258:Brachyopterus 3255: 3253: 3252: 3248: 3247: 3245: 3241: 3235: 3234:South America 3232: 3230: 3227: 3225: 3224:North America 3222: 3220: 3217: 3215: 3212: 3210: 3207: 3206: 3204: 3202: 3198: 3192: 3189: 3187: 3186:Carboniferous 3184: 3182: 3179: 3177: 3174: 3172: 3169: 3168: 3166: 3164: 3163:Geochronology 3160: 3155: 3133: 3130: 3128: 3125: 3123: 3120: 3119: 3117: 3115: 3111: 3105: 3102: 3101: 3099: 3097: 3093: 3087: 3084: 3083: 3081: 3079: 3075: 3069: 3066: 3064: 3061: 3059: 3056: 3055: 3053: 3051: 3047: 3044: 3042: 3036: 3030: 3027: 3025: 3022: 3020: 3017: 3016: 3014: 3012: 3011:Eurypteroidea 3008: 3002: 2999: 2998: 2996: 2994: 2990: 2984: 2981: 2980: 2978: 2976: 2972: 2969: 2967: 2961: 2951: 2950:Mycteroptidae 2948: 2946: 2943: 2941: 2938: 2937: 2935: 2933: 2932:Mycteropoidea 2929: 2923: 2920: 2918: 2915: 2914: 2912: 2910: 2906: 2900: 2897: 2895: 2892: 2891: 2889: 2887: 2886:Stylonuroidea 2883: 2877: 2876:Rhenopteridae 2874: 2873: 2871: 2869: 2865: 2862: 2860: 2854: 2848: 2845: 2844: 2842: 2838: 2835: 2831: 2825: 2824:Sclerophorata 2821: 2818: 2816: 2812: 2809: 2807: 2803: 2800: 2798: 2794: 2791: 2789: 2788:Euchelicerata 2785: 2782: 2780: 2776: 2774: 2770: 2768: 2764: 2763: 2760: 2756: 2749: 2744: 2742: 2737: 2735: 2730: 2729: 2726: 2716: 2712: 2707: 2702: 2698: 2694: 2693:Palaeontology 2690: 2683: 2675: 2671: 2667: 2663: 2659: 2655: 2651: 2647: 2643: 2636: 2628: 2624: 2620: 2616: 2612: 2608: 2604: 2600: 2596: 2589: 2587: 2585: 2576: 2570: 2563: 2562: 2554: 2553:"Eurypterids" 2547: 2539: 2535: 2530: 2525: 2520: 2515: 2511: 2507: 2506: 2501: 2494: 2492: 2490: 2488: 2479: 2475: 2471: 2464: 2462: 2460: 2458: 2456: 2448: 2442: 2440: 2438: 2429: 2423: 2419: 2415: 2411: 2410: 2402: 2394: 2390: 2386: 2382: 2378: 2374: 2370: 2363: 2355: 2351: 2347: 2340: 2332: 2328: 2324: 2320: 2313: 2305: 2301: 2294: 2292: 2283: 2279: 2275: 2271: 2267: 2263: 2259: 2255: 2248: 2240: 2236: 2231: 2226: 2222: 2218: 2214: 2207: 2205: 2193: 2189: 2185: 2181: 2177: 2176: 2168: 2161: 2159: 2157: 2155: 2153: 2151: 2142: 2138: 2134: 2130: 2126: 2122: 2118: 2114: 2110: 2106: 2099: 2097: 2088: 2084: 2080: 2076: 2071: 2066: 2062: 2058: 2054: 2050: 2049:Palaeontology 2046: 2039: 2037: 2035: 2033: 2031: 2029: 2020: 2014: 2010: 2003: 2002: 1994: 1993:"Eurypterids" 1987: 1979: 1966: 1958: 1951: 1943: 1939: 1935: 1931: 1925: 1923: 1914: 1908: 1904: 1900: 1899: 1891: 1889: 1880: 1876: 1872: 1868: 1861: 1853: 1849: 1845: 1841: 1837: 1833: 1829: 1822: 1820: 1818: 1816: 1814: 1812: 1810: 1808: 1806: 1804: 1795: 1791: 1787: 1782: 1777: 1773: 1769: 1765: 1761: 1757: 1753: 1752: 1747: 1740: 1738: 1736: 1734: 1732: 1724: 1720: 1714: 1707: 1703: 1697: 1693: 1680: 1676: 1672: 1668: 1666: 1665:Eocarcinosoma 1661: 1659: 1652: 1648: 1638: 1635: 1633: 1630: 1628: 1625: 1623: 1620: 1619: 1613: 1611: 1607: 1603: 1599: 1595: 1594:top predators 1591: 1585: 1583: 1579: 1578: 1573: 1569: 1565: 1561: 1556: 1548: 1547: 1541: 1535:Palaeoecology 1527: 1519: 1518: 1510: 1509: 1501: 1500: 1492: 1491: 1483: 1482: 1474: 1473: 1465: 1464: 1461: 1460: 1459: 1452: 1451: 1448: 1447: 1444: 1443: 1442: 1435: 1434: 1428: 1427: 1424: 1423: 1415: 1414: 1411: 1410: 1409: 1402: 1401: 1398: 1397: 1394: 1393: 1392: 1385: 1384: 1378: 1377: 1371: 1370: 1367: 1366: 1363: 1362: 1361: 1354: 1353: 1350: 1349: 1346: 1345: 1344: 1337: 1336: 1330: 1327: 1326: 1323: 1322: 1319: 1318: 1312: 1311: 1305: 1304: 1301: 1300: 1297: 1296: 1290: 1289: 1283: 1282: 1276: 1273: 1272: 1268: 1267: 1265: 1259: 1252: 1251: 1243: 1242: 1237: 1225: 1224: 1216: 1215: 1207: 1206: 1198: 1197: 1189: 1188: 1185: 1184: 1183: 1176: 1175: 1172: 1171: 1168: 1167: 1166: 1159: 1158: 1152: 1151: 1148: 1147: 1144: 1143: 1142: 1135: 1134: 1128: 1127: 1124: 1123: 1120: 1119: 1118: 1111: 1110: 1107: 1106: 1103: 1102: 1101: 1094: 1093: 1087: 1086: 1083: 1082: 1074: 1073: 1070: 1066: 1065: 1058: 1057: 1054: 1053: 1050: 1049: 1048: 1041: 1040: 1034: 1033: 1027: 1026: 1023: 1022: 1019: 1018: 1017: 1010: 1009: 1003: 1002: 996: 993: 992: 988: 987: 986:Tetlie (2007) 983: 982: 978: 976: 972: 968: 962: 960: 955: 951: 947: 939: 938: 933: 929: 920: 918: 914: 913: 908: 904: 900: 896: 892: 887: 885: 884:R. dosonensis 881: 877: 876:Eocarcinosoma 873: 872:pseudofossils 869: 865: 861: 860: 859:Eocarcinosoma 855: 851: 847: 843: 839: 835: 831: 823: 822: 817: 816: 811: 810: 804: 800: 798: 794: 790: 786: 782: 778: 774: 773:Embrik Strand 770: 766: 765:Echinognathus 762: 761:Megalograptus 758: 754: 750: 746: 745: 740: 739: 738:Megalograptus 734: 733: 732:Echinognathus 728: 727: 722: 718: 714: 710: 706: 704: 700: 696: 692: 688: 684: 680: 676: 672: 668: 664: 659: 657: 653: 649: 645: 641: 637: 633: 629: 625: 622: 618: 617: 612: 608: 604: 600: 596: 595:E. scorpionis 592: 588: 584: 580: 576: 575:E. scorpionis 572: 568: 564: 562: 557: 549: 545: 541: 540: 535: 531: 522: 520: 516: 512: 508: 504: 500: 496: 495: 489: 487: 483: 478: 476: 474: 469: 468: 467:Jaekelopterus 463: 461: 456: 449: 448: 442: 433: 431: 427: 423: 422:top predators 418: 416: 415: 410: 409: 404: 403: 398: 397: 396:Eocarcinosoma 392: 388: 384: 380: 379: 378:Jaekelopterus 374: 369: 367: 364:to the Early 363: 359: 355: 351: 350:North America 347: 343: 339: 335: 331: 330: 326: 322: 312: 311: 306: 303: 302: 297: 295: 294: 289: 287: 286: 285:Eocarcinosoma 281: 279: 278: 273: 272: 270: 267: 263: 256: 255: 247: 244: 240: 236:Størmer, 1934 233: 227: 224: 223: 220: 214: 212:Superfamily: 211: 210: 207: 201: 198: 197: 194: 188: 185: 184: 181: 178: 175: 174: 171: 168: 165: 164: 161: 158: 155: 154: 151: 148: 145: 144: 139: 134: 130: 127: 126: 120: 116: 111: 104: 99: 94: 89: 84: 79: 74: 69: 64: 59: 54: 49: 43: 36: 32: 24: 21: 16: 3483: 3395: 3388: 3381: 3361: 3354: 3347: 3340: 3333: 3326: 3319: 3312: 3305: 3300:Hughmilleria 3298: 3291: 3284: 3277: 3270: 3263: 3256: 3249: 3132:Pterygotidae 3068:Mixopteridae 3057: 3024:Eurypteridae 2899:Stylonuridae 2819: 2810: 2801: 2792: 2783: 2696: 2692: 2682: 2649: 2645: 2635: 2602: 2598: 2560: 2546: 2509: 2503: 2477: 2473: 2408: 2401: 2376: 2372: 2362: 2353: 2349: 2339: 2322: 2318: 2312: 2303: 2257: 2253: 2247: 2220: 2216: 2192:the original 2179: 2173: 2108: 2104: 2052: 2048: 2000: 1986: 1965:cite journal 1950: 1941: 1937: 1897: 1870: 1866: 1860: 1838:(1): 19–24. 1835: 1831: 1755: 1749: 1722: 1713: 1705: 1696: 1678: 1674: 1670: 1663: 1656: 1651: 1637:Mixopteridae 1589: 1586: 1575: 1552: 1544: 1525: 1456: 1455: 1439: 1438: 1406: 1405: 1389: 1388: 1358: 1357: 1341: 1340: 1328: 1317:Mixopteridae 1315: 1293: 1263: 1261: 1260: 1235: 1180: 1179: 1163: 1162: 1139: 1138: 1115: 1114: 1098: 1097: 1068:   1062: 1061: 1045: 1044: 1014: 1013: 985: 984: 975:monophyletic 970: 967:paraphyletic 963: 943: 935: 916: 910: 906: 902: 898: 894: 890: 888: 883: 879: 875: 867: 863: 857: 853: 849: 845: 841: 837: 833: 827: 819: 813: 807: 796: 788: 784: 780: 776: 771:). In 1942, 764: 760: 757:Mixopteridae 752: 748: 742: 736: 730: 724: 720: 716: 713:Leif Størmer 708: 707: 702: 698: 694: 690: 686: 682: 678: 674: 670: 660: 655: 651: 639: 635: 628:Gonyleptidae 614: 610: 606: 602: 598: 594: 574: 570: 559: 555: 553: 537: 518: 514: 510: 506: 502: 498: 492: 490: 479: 471: 465: 458: 452: 445: 419: 412: 406: 400: 394: 390: 376: 372: 370: 345: 327: 320: 319: 308: 299: 291: 283: 275: 252: 243:Type species 231: 199:Infraorder: 123: 20: 15: 3508:Wikispecies 3397:Palmichnium 3374:Ichnogenera 3272:Carcinosoma 2966:Eurypterina 2859:Stylonurina 2797:Prosomapoda 2779:Chelicerata 2777:Subphylum: 2755:Eurypterids 1717:Meaning of 1700:Meaning of 1610:brachiopods 1560:pterygotids 1543:Model of a 932:Mixopterids 917:Holmipterus 912:Holmipterus 838:Carcinosoma 824:and a human 809:Carcinosoma 797:Carcinosoma 791:in 1962 by 789:Carcinosoma 749:Carcinosoma 721:Carcinosoma 717:Carcinosoma 699:Carcinosoma 691:Carcinosoma 656:Carcinosoma 519:Carcinosoma 482:Eurypterina 460:Carcinosoma 455:eurypterids 447:Carcinosoma 436:Description 414:Holmipterus 391:Carcinosoma 346:Carcinosoma 334:eurypterids 329:Carcinosoma 301:Holmipterus 277:Carcinosoma 193:Eurypterida 180:Chelicerata 176:Subphylum: 3584:Categories 3363:Stylonurus 3349:Pterygotus 3328:Mixopterus 3321:Megarachne 3286:Eurypterus 3171:Ordovician 3127:Slimonidae 3038:Infraorder 2815:Dekatriata 2806:Planaterga 2773:Arthropoda 2574:9171581707 2379:(3): 235. 2018:9171581707 1689:References 1598:scavengers 1582:lacustrine 937:Mixopterus 934:, such as 753:Mixopterus 726:Mixopterus 640:E. newlini 624:harvestmen 621:laniatorid 611:Eurypterus 599:Eurypterus 561:Pterygotus 426:scavengers 362:Ordovician 338:arthropods 325:type genus 170:Arthropoda 122:Fossil of 31:Ordovician 3440:Metastoma 3424:Xiphosura 3414:Arachnida 3201:Geography 2765:Kingdom: 2715:1475-4983 2666:0022-3360 2619:0022-3360 2393:0263-5933 2282:128874377 2274:0370-291X 2239:2475-2622 2133:1469-5081 2087:129450304 2079:1475-4983 2070:1808/8358 1852:1860-0743 1772:1744-9561 1546:Eusarcana 1262:Lamsdell 895:Eusarcana 886:in 2002. 846:Eusarcana 815:Eusarcana 781:Eusarcana 661:In 1912, 593:to refer 563:punctatus 534:Carapaces 515:Eusarcana 503:Eusarcana 473:Eusarcana 462:punctatum 402:Eusarcana 387:scorpions 293:Eusarcana 156:Kingdom: 150:Eukaryota 125:Eusarcana 3499:Q5038169 3493:Wikidata 3461:Category 3383:Arcuites 3356:Slimonia 3181:Devonian 3176:Silurian 2963:Suborder 2856:Suborder 2833:Taxonomy 2771:Phylum: 2767:Animalia 2674:55014027 2627:46953627 2538:26324341 2141:83835591 1790:19828493 1660:cicerops 1616:See also 1572:Devonian 1568:Silurian 1564:Gondwana 1555:lagoonal 899:Eusarcus 864:Eusarcus 854:Eusarcus 842:Eusarcus 834:Eusarcus 777:Eusarcus 709:Eusarcus 703:Eusarcus 695:Eusarcus 687:Eusarcus 679:Eusarcus 675:Eusarcus 671:Eusarcus 652:Eurysoma 636:Eurysoma 616:Eusarcus 571:Eusarcus 366:Devonian 225:Family: 166:Phylum: 160:Animalia 146:Domain: 35:Devonian 33:- Early 3541:3255726 3528:4305738 3229:Oceania 3191:Permian 2529:4556007 2512:: 169. 2480:: 1–11. 2331:1300736 2113:Bibcode 1879:1301214 1781:2865068 1566:in the 977:group. 889:Though 767:to the 755:to the 648:beetles 579:Pridoli 550:in 1912 186:Order: 3567:286987 3554:101156 3219:Europe 3209:Africa 2840:Genera 2713:  2672:  2664:  2625:  2617:  2571:  2536:  2526:  2424:  2391:  2329:  2280:  2272:  2237:  2223:: 57. 2139:  2131:  2085:  2077:  2015:  1909:  1877:  1850:  1788:  1778:  1770:  1702:cancer 1526: 1266:(2015) 1264:et al. 486:telson 475:obesus 383:telson 354:Europe 266:Genera 3549:IRMNG 2820:Clade 2811:Clade 2802:Clade 2793:Clade 2784:Clade 2670:S2CID 2623:S2CID 2565:(PDF) 2556:(PDF) 2327:JSTOR 2278:S2CID 2195:(PDF) 2170:(PDF) 2137:S2CID 2083:S2CID 2005:(PDF) 1996:(PDF) 1875:JSTOR 1643:Notes 1606:worms 971:et al 642:, by 581:-age 3536:GBIF 3214:Asia 2711:ISSN 2662:ISSN 2615:ISSN 2569:ISBN 2534:PMID 2422:ISBN 2389:ISSN 2270:ISSN 2235:ISSN 2129:ISSN 2075:ISSN 2013:ISBN 1978:help 1907:ISBN 1848:ISSN 1786:PMID 1768:ISSN 1719:soma 1570:and 836:and 818:and 763:and 759:and 735:and 665:and 546:and 358:Asia 356:and 48:PreꞒ 3523:EoL 2701:doi 2654:doi 2607:doi 2524:PMC 2514:doi 2478:3–4 2414:doi 2381:doi 2262:doi 2225:doi 2184:doi 2180:252 2121:doi 2109:143 2065:hdl 2057:doi 1840:doi 1776:PMC 1760:doi 1721:at 1704:at 1596:or 597:to 585:of 565:by 536:of 3586:: 3564:: 3551:: 3538:: 3525:: 3510:: 3495:: 2822:: 2813:: 2804:: 2795:: 2786:: 2709:. 2697:52 2695:. 2691:. 2668:. 2660:. 2650:79 2648:. 2644:. 2621:. 2613:. 2603:63 2601:. 2597:. 2583:^ 2532:. 2522:. 2510:15 2508:. 2502:. 2486:^ 2476:. 2472:. 2454:^ 2436:^ 2420:. 2387:. 2377:94 2375:. 2371:. 2352:. 2348:. 2323:32 2321:. 2302:. 2290:^ 2276:. 2268:. 2258:24 2256:. 2233:. 2219:. 2215:. 2203:^ 2178:. 2172:. 2149:^ 2135:. 2127:. 2119:. 2107:. 2095:^ 2081:. 2073:. 2063:. 2053:45 2051:. 2047:. 2027:^ 2007:. 1969:: 1967:}} 1963:{{ 1940:. 1936:. 1921:^ 1905:. 1901:. 1887:^ 1871:35 1869:. 1846:. 1836:88 1834:. 1830:. 1802:^ 1792:. 1784:. 1774:. 1766:. 1754:. 1748:. 1730:^ 961:. 812:, 799:. 779:, 729:, 723:, 658:. 432:. 417:. 405:, 399:, 393:, 352:, 98:Pg 42:Ma 37:, 2747:e 2740:t 2733:v 2717:. 2703:: 2676:. 2656:: 2629:. 2609:: 2577:. 2540:. 2516:: 2430:. 2416:: 2395:. 2383:: 2356:. 2354:4 2333:. 2306:. 2284:. 2264:: 2241:. 2227:: 2221:6 2186:: 2143:. 2123:: 2115:: 2089:. 2067:: 2059:: 2021:. 1980:) 1976:( 1959:. 1944:. 1942:4 1915:. 1881:. 1854:. 1842:: 1796:. 1762:: 1756:6 866:/ 605:( 307:† 304:? 298:† 290:† 282:† 274:† 250:† 229:† 216:† 203:† 190:† 103:N 93:K 88:J 83:T 78:P 73:C 68:D 63:S 58:O 53:Ꞓ

Index

Ordovician
Devonian
Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

Eusarcana
Scientific classification
Edit this classification
Eukaryota
Animalia
Arthropoda
Chelicerata
Eurypterida
Diploperculata
Carcinosomatoidea
Carcinosomatidae
Type species
Carcinosoma newlini
Genera

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