Archosaurs have a nearly 250 million year record that originated shortly after the Permian-Triassic extinction event and is continued today by two extant clades, the crocodylians and the avians. The ...

Extinct archosaurs' eggshell porosity may be used as a proxy for predicting covered or exposed nest types, according to a new study. Extinct archosaurs' eggshell porosity may be used as a proxy for ...

Long before dinosaurs became dominant, the Triassic world was ruled by archosaurs whose true behavior is still debated by ...

This photo shows the fossilized cervical vertebra and overlaying osteoderms of the new archosaur species Mambachiton fiandohana. Credit: Sterling, et. al Researchers have described a new species of ...

A newly-described 235-million-year old fossil tells us more about the ancient ancestor to dinosaurs and pterosaurs. Scientists have unveiled a new species of archosaur, a reptile that existed around ...

Scientists have identified one of the earliest known dinosaur relatives — and it doesn’t look anything like they expected. Researchers had thought that the oldest dinosaur cousins would look rather ...

Researchers have described a new species of armored reptile that lived near the time of the first appearance of dinosaurs. With bony plates on its backbone, this archosaur fossil reveals that armor ...