A fragment of upper jaw fossil from the Early Cretaceous is among the oldest examples of a toothless amphibian in the fossil ...

Paleontologists have uncovered fossils of a giant turtle species with some striking features, such as its shape, that lived tens of millions of years ago in South America. The research team found ...

A number of primitive turtles known from the fossil record already have complete shells. The oldest known turtle prior to this find, an animal called Odontochelys, had a fully-formed shell over ...