In this case, that the earliest members of the dinosaur branch of the archosaur family tree were four-legged meat-eaters that still shared some features in common with their more distant crocodile ...

By examining this record and mapping it against the crocodile family tree, our research reveals ... with pterosaurs they form a group known as archosaurs or "ruling reptiles," who date back ...

But their relationship to dinosaurs is unclear Kongonaphon is not the first small fossil animal known near the root of the ornithodiran family tree but ... among the first archosaurs - the ...