Talk:Vertebrate

Fgkh

“The first vertebrates appeared in the Cambrian explosion some 518 million years ago. Jawed vertebrates evolved in the Ordovician, followed by bony fishes in the Devonian. The first amphibians appeared on land in the Carboniferous. During the Triassic, mammals and dinosaurs appeared, the latter giving rise to birds in the Jurassic. Extant species are roughly equally divided between fishes of all kinds, and Tetrapods. Populations of many species have been in steep decline since 1970 because of land-use change, overexploitation of natural resources, climate change, pollution and the impact of invasive species.” I think this section from the lead might be a bit outdated or inaccurate, first the Gnathostomata article says the first jawed vertabrates are from the Silurian with possible Ordovician records but this just says they evolved in the Ordovician and the Osteichthyes article says that bony fish originated in the Silurian. Houcaris (talk) 23:04, 16 October 2025 (UTC)

Edited. Chiswick Chap (talk) 12:22, 17 October 2025 (UTC)

Reword The Title Of Mesozoic So It Doesn't Sound Like Reptiles Became Mammals

Also The Bird Part, Because It Makes It Sound Like Some Reptiles "Evolved Out Of A Clade" To Become Birds Derikooo (talk) 11:13, 31 January 2026 (UTC)

 Done cyclopia^speak! 11:17, 31 January 2026 (UTC)

Let's take this gently. Firstly, section headings should not be PhD-level technical. Many readers to this high-level article will never have heard the word "amniotes", for example, so we definitely need to keep it simple. It would equally be a shame not to mention reptiles in some way; and we shouldn't overthink the headings, readers do not automatically infer cladistics and evolution from them. 'Age of reptiles', for instance, does not say that they evolved into anything (it could equally well mean a lot of them went extinct, which was actually what happened). I'll tweak the heading, but am open to suggestions. Chiswick Chap (talk) 11:58, 31 January 2026 (UTC)

Wiki Education assignment: English 300 Scientific Writing

This article was the subject of a Wiki Education Foundation-supported course assignment, between 12 January 2026 and 1 May 2026. Further details are available on the course page. Peer reviewers: Kodakdehbout.

— Assignment last updated by Jennie177 (talk) 22:12, 22 February 2026 (UTC)