[VadeRetro]

The ancestors of mammals, Synapsida, branch off that Amniote tree I linked earliest of all.

". . . branch earliest of all off of that tree . . ." Tired.

Forgot to mention that we could move the invention of mammaries back to some common ancestor of T. rex and the synapsids, then figure out some loopy reason no other descendants have the milk glands. (Nah!)

[gore3000]

Forgot to mention that we could move the invention of mammaries back to some common ancestor of T. rex and the synapsids, then figure out some loopy reason no other descendants have the milk glands. (Nah!)

THANKS VERY MUCH VADE FOR PROVING MY POINT BETTER THAN I EVER COULD -

EVOLUTION IS A JOKE.