Editing Triassic (section)

=== Amphibians ===
[[File:Mastodonsaurus3.jpg|thumb|170px|right|Reconstruction of the Triassic amphibian ''[[Mastodonsaurus]]'']]
[[Temnospondyli|Temnospondyl]] [[amphibian]]s were among those groups that survived the Permian–Triassic extinction. Once abundant in both terrestrial and aquatic environments, the terrestrial species had mostly died out during the extinction event. The Triassic survivors were aquatic or semi-aquatic, and were represented by ''[[Tupilakosaurus]]'', ''[[Thabanchuia]]'', [[Branchiosauridae]] and ''[[Micropholis (amphibian)|Micropholis]]'', all of which died out in Early Triassic, and the successful [[Stereospondyli]], with survivors into the Cretaceous Period. The largest Triassic stereospondyls, such as ''[[Mastodonsaurus]],'' were up to {{convert|4|to|6|m|ft}} in length.<ref>{{Cite book |last=Wells |first=Kentwood D. |url=https://books.google.com/books?id=eDKEKy5JJbIC&q=By+the+Triassic+Period+(245+million+years+ago),+the+temnospondyls&pg=PA8 |title=The Ecology and Behavior of Amphibians |publisher=[[University of Chicago Press]] |year=2010 |isbn=978-0-226-89333-4 |via=Google Books}}</ref><ref>{{Cite book |url=https://books.google.com/books?id=VThUUUtM8A4C&q=At+the+end+of+the+Permian,+the+temnospondyls+largely+died+out&pg=PA97 |title=Vertebrate Palaeontology |first=Michael |last=Benton |date=2009 |publisher=John Wiley & Sons |via=Google Books |isbn=978-1-4051-4449-0}}</ref> Some lineages (e.g. [[trematosaur]]s) flourished briefly in the Early Triassic, while others (e.g. [[capitosaur]]s) remained successful throughout the whole period, or only came to prominence in the Late Triassic (e.g. ''[[Plagiosaurus]]'', [[metoposaur]]s).

The first [[Lissamphibia]]ns (modern amphibians) appear in the Triassic, with the progenitors of the first [[frog]]s already present by the Early Triassic. However, the group as a whole did not become common until the [[Jurassic]], when the temnospondyls had become very rare.

Most of the [[Reptiliomorpha]], stem-amniotes that gave rise to the amniotes, disappeared in the Triassic, but two water-dwelling groups survived: [[Embolomeri]] that only survived into the early part of the period, and the [[Chroniosuchia]], which survived until the end of the Triassic.