The painted desert of Arizona’s Petrified Forest National Park is a fossil wonderland. Scattered through the sunbeaten rock ...

Buried for 209 million years, a tiny flying reptile and its ancient neighbors just emerged from Arizona’s Triassic past.

Recrystallization - A process by which the minerals making up the original shell or bone of a fossil change into a different mineral made of the same chemical components.Commonly, fossil shells made ...

Shell-rich rocks trace a mostly upward climb in ocean life, with each mass extinction slashing both diversity and biomass ...

Secrets Emerge From a Fossil’s Taco Shell-Like Cover. ... Canada, in the Burgess Shale, a rock formation with unusually high rates of high-quality preservation of soft body parts.

Measuring shells and skeletons encased in thousands of limestone samples has revealed that the sheer amount of living stuff ...

A dinosaur fossil has been found in an unlikely way in an unlikely place, a hole drilled under the parking lot of a Colorado ...

The big sky country of the western North America is a world-renowned dinosaur playground. Household-name dinosaurs like ...