The number of dinosaurs may have been stable before the asteroid impact, despite evidence that species were getting less diverse ...

Entombed in amber for 99 million years, the smallest dinosaur fossil ever discovered is rewriting what we thought we knew ...

A rare Middle Jurassic dinosaur skeleton, the most complete of its kind ever found in Scotland.

This fossil is 13 million years older than any ant fossil found before—and reveals a sophisticated predator that lived ...

This new piece could complete the anatomical puzzle of this herbivorous titan. Big Bend National Park is renowned for its paleontological discoveries. Besides Alamosaurus, it has yielded fossils of ...

Alligators first appeared over 200 million years ago—long before the rise of dinosaurs—and have survived mass extinctions, ...

Long thought extinct, sebecid fossils found in the Dominican Republic are rewriting what we know about ancient predators in ...

One of the largest crocodilians that ever lived preyed on dinosaurs. New research has found the fearsome Deinosuchus had a ...

Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers during the middle to late Permian period.