Two 325-million-year-old ctenacanth shark fossils discovered in Mammoth Cave shed light on ancient marine ecosystems.

Woodcut of fossil trilobites found in Missouri with explanations. In Missouri Geological Survey vol 4 part 1 Paleontology of Missouri 1894. Royalty-free licenses let you pay once to use copyrighted ...

For more than a decade, paleontologists have speculated about a single fossil that preserves skeletons of two of the world’s most famous dinosaurs, Tyrannosaurus rex and Triceratops. Not only ...

A prehistoric sea monster never-before-known to man was hunting prey in North America 85 million years ago, fossils found decades ago in Canada reveal. The first set of fossils, found in 1988 along ...

The research also showed that structures considered to be teeth in fossils from the Cambrian period (485–540 million years ago) were similar to features in the armor of fossil invertebrates ...