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record left behind by ancient life forms. Although fossils had been studied by scholars since ancient times, the nature of fossils and their relationship to life in the past became better understood during the 17th and 18th centuries. At the end of the 18th century the work of
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The first half of the 19th century saw paleontological activity become increasingly well organized. This contributed to a rapid increase in knowledge about the history of life on Earth, and progress towards definition of the
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Map of Earth as it appeared 400 million years ago during the Early
Devonian, Emsian stage
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Do you have a question about
Abyssal/Portal:Devonian that you can't find the answer to?
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which covered the continents. By the middle of the
Devonian, several groups of
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towards the mouth, and both the mouth and anus lie inside the "crown". Most
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near the end of the 20th century. There was also a renewed interest in the
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Selected article on the
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in 1859, much of the focus of paleontology shifted to understanding
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that saw the development of the body plans of most animal phyla. (
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can be told apart from its sister subfamily by looking at teeth?
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which includes, at over 2 meters long, the largest terrestrial
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swim for a short time and then settle on a surface. There they
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of entoprocts are colonial. Some species eject unfertilized
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Selected article on the
Devonian world and its legacies
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719:ended a long running debate about the reality of
496:Restoration of the Devonian thelodont Furcacauda.
1620:sister projects provide more on this subject:
710:traces the history of the effort to study the
699:from Animals of the Past by Frederic A. Lucas.
511:surprised scientists by showing that stomachs
455:, has been reevaluated as being an ancient,
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1384:Here are some tasks awaiting attention:
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293:Silurian-Devonian Terrestrial Revolution
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1661:Free textbooks and manuals
1315:Featured Devonian articles
588:Consider asking it at the
340:Show new selections below
1091:List of creatures in the
263:) began to spread across
1781:Dictionary and thesaurus
1721:Collection of quotations
1023:Jeffersonville Limestone
590:Knowledge reference desk
1276:Devonian paleogeography
561:are the earliest known
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1199:Devonian North America
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244:The first significant
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1409:Current Devonian FACs
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851:Alice Springs Orogeny
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459:-bearing entoproct. (
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289:pteridospermatophytes
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1741:Free-content library
1618:Wikimedia Foundation
1611:Associated Wikimedia
1031:Mahantango Formation
1003:Grenfell fossil site
625:Rhynchospira formosa
509:(depiction pictured)
267:, forming extensive
1761:Free learning tools
1681:Free knowledge base
1332:Marcellus Formation
1166:Devonian Antarctica
1035:Marcellus Formation
1007:Stratigraphic units
732:geologic time scale
397:draw food particles
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1366:Things you can do
1086:Animal Armageddon
1069:Henry De la Beche
1047:Old Red Sandstone
741:Origin of Species
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658:Photo credit:
649:Lower Devonian
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528:Praenuculinae
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486:Did you know?
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947:Ostracoderms
935:Hederelloids
910:
903:Proto-Tethys
899:Paleo-Tethys
888:
868:
867:
846:
814:
798:
797:
791:
772:
764:
750:
746:evolutionary
739:
728:
725:paleontology
707:paleontology
704:
697:Dunkleosteus
696:
683:
666:
623:
614:
607:
587:
584:
578:
571:More DYKs...
569:
558:ostracoderms
556:
535:
526:
515:before jaws?
508:
502:
485:
468:
460:
450:
428:
417:metamorphose
376:
360:
341:
339:
330:Read more...
328:
320:
297:land animals
275:had evolved
269:coal forests
250:life on land
243:
134:
132:
108:Introduction
25:
18:User:Abyssal
1757:Wikiversity
1337:Ornatifilum
1324:Chitinozoan
1077:Neil Shubin
1065:Researchers
919:Brachiopods
907:Rheic Ocean
896:Panthalassa
766:see more...
705:history of
462:see more...
257:land plants
212:Phanerozoic
210:during the
66:Mathematics
1777:Wiktionary
1737:Wikisource
1546:Ordovician
989:Lycophytes
985:Horsetails
963:Trilobites
951:Placoderms
892:Ural Ocean
881:Euramerica
869:Landmasses
819:Lochkovian
738:published
721:extinction
633:Athyridida
579:Need help?
563:vertebrate
550:arthropods
525:subfamily
383:of mostly
377:Entoprocta
317:Ordovician
301:arthropods
96:Technology
81:Philosophy
41:Activities
1792:What are
1717:Wikiquote
1657:Wikibooks
1532:Paleozoic
1349:Tiktaalik
959:Tetrapods
923:Bryozoans
915:Ammonoids
877:Laurentia
843:Famennian
635:, Family
629:lampshell
546:myriapods
544:class of
534:... that
504:Thelodont
435:Trochozoa
319:period. (
309:arachnids
305:myriapods
279:and true
205:Paleozoic
51:Geography
1697:Wikinews
1677:Wikidata
1585:Devonian
1553:Silurian
1539:Cambrian
1393: :
1144:Devonian
931:Crinoids
885:Gondwana
839:Frasnian
835:Givetian
831:Eifelian
641:Oklahoma
631:, Order
565:animals?
555:...that
457:sclerite
443:annelids
439:molluscs
431:Jurassic
409:placenta
401:families
313:hexapods
303:such as
265:dry land
219:Silurian
136:Devonian
86:Religion
1794:portals
1637:Commons
1599:Permian
1081:Culture
1057:History
939:Insects
911:Animals
873:Baltica
823:Pragian
748:paths.
542:extinct
523:bivalve
520:extinct
513:evolved
449:fossil,
425:stolons
421:cloning
389:animals
387:marine
385:sessile
342:(purge)
254:sporing
203:of the
195:) is a
91:Society
61:History
46:Culture
1427:
1362:
1317:- None
1304:
1127:
1095:series
977:Plants
955:Sharks
927:Corals
847:Events
827:Emsian
799:Epochs
788:
712:fossil
680:
604:
540:is an
482:
413:larvae
393:goblet
381:phylum
357:
277:leaves
201:system
76:People
71:Nature
56:Health
1390:Stubs
981:Ferns
967:Fungi
757:China
507:fish
379:is a
281:roots
235:Devon
16:<
1472:Time
1424:edit
1359:edit
1328:Fish
1301:edit
1124:edit
815:Ages
785:edit
703:The
677:edit
601:edit
479:edit
441:and
354:edit
311:and
285:seed
199:and
133:The
655:).
645:USA
405:ova
248:of
215:eon
208:era
190:VOH
188:də-
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227:Ma
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170:ən
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179:ɛ
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173:,
167:.
164:i
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155:v
152:ˈ
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