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

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

He also noted that features such as bipedalism, toothless beaks, hollow bones, and large eye sockets are typically associated ...

This is a new field trip to a sand pit near Shoofly that contains small fossils and petrified wood from ancient Lake ...

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

Barry Hughes, a volunteer in the Condon Fossil Collection, opens a drawer containing the head of a saber-tooth tiger and ...

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.

Trading gems, minerals, fossils and meteorites can be fraught with controversy and ethical ambiguity. But is the answer to ...

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

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 ...

Sonselasuchus cedrus, discovered in fossils from Arizona, was a crocodile relative from the Triassic period that grew into an ...

But hiding along a stretch of Interstate 90 in Central Washington is a geological marvel that rivals anything you’d find on ...