News for hackers. Stuff that matters.

A comment on Your Brain Is Not An Onion With A Tiny Reptile Inside (2020). Parent comment

Re:Your Brain Is Not An Onion With A Tiny Reptile Inside (2020) by dillydogg on Monday September 18, 2023 @01:52PM (#37559488)
What? Mammals appear in a separate branch of amniotes apart from Reptiles/Birds/Crocodilians

Mammals and reptiles share a common ancestor with an ancient amniote, not a reptile

[ Parent | on HN ]
Re:Your Brain Is Not An Onion With A Tiny Reptile Inside (2020) by gowld on Monday September 18, 2023 @04:15PM (#37561403)
https://en.wikipedia.org/wiki/Synapsid

> Synapsids[a] are one of the two major clades of vertebrate animals that evolved from basal amniotes, the other being the sauropsids, which include reptiles (turtles, crocodilians and lepidosaurs) and birds.

> the only extant group that survived into the Cenozoic are the mammals.

> The animals (basal amniotes) from which non-mammalian synapsids evolved were traditionally called "reptiles".

> It is now known that all extant animals traditionally called "reptiles" are more closely related to each other than to synapsids, so the word "reptile" has been re-defined to mean only members of Sauropsida (bird-line Amniota) or even just an under-clade thereof

[ Parent | on HN ]