RIVERSIDE, Calif. - A type of vertebrate trace fossil gaining recognition in the field of paleontology is that made by various tetrapods (four-footed land-living vertebrates) as they traveled through ...

Newly discovered fossils from China show a swimming reptile with a small head, tiny eyes and a bill similar to a modern duck-billed platypus. Like the platypus, Eretmorhipis carrolldongi probably used ...

Vertebrate tracks provide valuable information about animal behavior and environments. Swim tracks are a unique type of vertebrate track because they are produced underwater by buoyant trackmakers, ...

(CN) — A new species of a Triassic reptile has been discovered in Brazil, and paleontologists confirm it is a close cousin of the mysterious lizard-like group called the tanystropheids, according to a ...

Ancient mammal relatives called therapsids survived Earth’s greatest mass extinction 252 million years ago to become some of the most successful animals in the Early Triassic. Now, researchers ...

No animal alive today looks quite like a duckbilled platypus, but about 250 million years ago something very similar swam the shallow seas in what is now China, finding prey by touch with a ...

Archosaurs have a nearly 250 million year record that originated shortly after the Permian-Triassic extinction event and is continued today by two extant clades, the crocodylians and the avians. The ...

That swim tracks made by tetrapods occur in high numbers in deposits from the Early Triassic is well known. What is less clear is why the tracks are so abundant and well preserved. Paleontologists ...