Three tiny Purgatorius teeth found in Colorado are helping scientists trace how early primates evolved and spread across North America.

A fossil skull barely 1 inch long has proved to be a newborn reptile from Brazil’s Late Triassic, a period more than 230 million years ago when early reptiles dominated land ecosystems. Its tiny jaw ...

Scientists announced on March 5, 2026, that they have identified an entirely new genus of mammal called Tous, a group of ...

Scientists long believed stem tetrapods largely disappeared after a major ecological event known as the Carboniferous Rainforest Collapse. That event caused widespread destruction of tropical forests ...

The death of this ancient species, discovered alongside more newly described mammals, had been greatly exaggerated.

While there is a common belief that the evolution of humans can be traced back to fishlike vertebrate ancestors, pinpointing the origins of bony fish — a key group in this evolution — remains ...

Chinese paleontologists have discovered the world's oldest complete bony fish fossils, dating back 436 million years ...

A team co-led by University of Minnesota researcher Peter Makovicky and Argentinean colleague Sebastian Apesteguía has ...

How many fossils does it take to accurately train an image-based AI algorithm? According to a new study co-authored by Bruce ...

The 90-million-year-old fossil of a tiny bird-like dinosaur has rewritten history, say scientists. They described the ...

A newly identified ichthyosaur from the UK’s Jurassic Coast is rewriting part of the prehistoric playbook. Nicknamed the ...