Pelycosaur
Informal grouping composed of basal or primitive Late Paleozoic synapsids
Summary
Pelycosaur is an older term for basal or primitive Late Paleozoic synapsids, excluding the therapsids and their descendants. Previously, the term mammal-like reptile was used, and Pelycosauria was considered an order, but this is now thought to be incorrect and outdated. The terms stem mammals, protomammals, and basal or primitive synapsids are instead used where needed.
Originally created by Ezod
3/9/2004, 2:42:26 PM
Modified
6/2/2026, 4:32:34 PM
Recent revisions
Undid revision [[Special:Diff/1357282393|1357282393]] by [[Special:Contributions/Cantthinkofanyusername|Cantthinkofanyusername]] ([[User talk:Cantthinkofanyusername|talk]])
Reverted 1 edit by [[Special:Contributions/~2026-29688-78|~2026-29688-78]] ([[User talk:~2026-29688-78|talk]]) to last revision by FourLights
/* Description */
add an extra word that catches in my brain
needs a comma, since therapsids article says therapsids in general evolve from them, and not just some.
/* Etymology */
/* Etymology */
/* Etymology */
suggest replacing the unsourced section with this paragraph which I found informative
/* Taxonomy */
/* See also */ annotate links
[[User:Monkbot/task 21: Replace page(s) with article-number|Monkbot/task 21: Replace page(s) with article-number]];
Past perfect tense corrected to simple past.
Moving [[:Category:Synapsids]] to [[:Category:Synapsida]] per [[Wikipedia:Categories for discussion/Speedy]]
