Dinosaurs arrived hot on the tails of their more ancient relatives, reptiles called dinosauromorphs, a new study shows. New dating of a dinosauromorph fossil layer in a geologic formation in Argentina ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have identified a new species of extinct crocodile kin that ...

A new species of ancient reptile has been named after spending more than 200 million years buried in the ground. Threordatoth chasmatos was one of the last survivors of the procolophonids, a group of ...

The Triassic Period was a time of great change. Bookended by extinctions, this era saw huge shifts in the diversity and dominance of life on Earth, ushering in the appearance of many well-known groups ...

Ancient predator revealed: A digitally reconstructed late Triassic skull analysed by a student led to the identification of a new carnivorous dinosaur species. Older than T. rex: Ptychotherates ...

In Arizona's dry, rugged badlands, you can find something far more valuable than any glittering gold: the Petrified Forest.