The poodle-sized reptile that lived over 200 million years ago was among creatures that had features similar to dinosaurs it ...

Researchers discovered that a 215-million-year-old reptile started life on four legs and switched to two as an adult.

Learn how fossils from Arizona’s Petrified Forest National Park revealed that a Late Triassic crocodile relative may have started life on four legs before walking on two as an adult.

A "peculiar" ancient relative of the crocodile which experts believe began life on four legs before, in adulthood, it learned how to walk on just two has been revealed in a new study. Named ...

If you thought that crocodiles were menacing enough, be glad that you didn’t live in Arizona some 225–201 million years ...

Researchers believe these creatures started out on four legs and later began walking on two legs as they grew.

A newly discovered 47-egg clutch from Brazil provides scientists with unprecedented insights into the reproductive strategies ...

Fruita’s location makes it an ideal stop for anyone traveling through western Colorado. It’s just minutes from Grand Junction and right off Interstate 70, so you can easily add it to your itinerary ...

A newly described Patagonian fossil reveals the evolutionary origins and global spread of the tiny alvarezsaur dinosaurs.

Based on these details, its closest evolutionary relatives, and its river habitat, the study’s authors believe Tanyka likely resembled a three-foot-long salamander sporting a lengthier snout. But at ...

A sediment-washing “bubbler” helped researchers recover 65.5-million-year-old teeth that illuminate how early primate relatives spread after the mass extinction.

A triceratops skeleton that once greeted visitors at a Wyoming museum is heading to an online auction as dinosaur prices keep ...