The calcitic layers of the eggshells of archosaurs (including crocodilians and birds) and turtles are composed of distinctive ...

A study led by the University of Leicester has linked fossilized tracks of flying reptiles to the specific animals that created them. Fossilized footprints dating back more than 160 million years have ...

A newly analyzed fossil has revealed surprising insights into the evolutionary history of echidnas, suggesting that their ...