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 ...

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 ...

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 ...

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 ...

A new study by Princeton and Yale researchers estimates dinosaurs first appeared between 250 and 240 million years ago, earlier than the previously accepted 230 million years. This conclusion, drawn ...