This period was preceded by the Triassic Period and followed by ... suffocating marine animals and triggering a mass ...

The animals' fossilized remains ... It's still unclear whether mass metoposaurid die-offs like the one at Nobby Knob were common during the Triassic or whether the site represents an isolated event.

Coelophysis is an early theropod dinosaur, a pioneering member of a group that will one day give rise to some of the biggest carnivores ever to live. He’s a lot more humble in his size, however, ...

In the Mesozoic Era, there are fossils that represent both extinct groups and modern groups of animals and plants. During the first period of the Mesozoic Era (Triassic Period), many new types of ...

Paleontologists are uncovering a bonebed containing more than 19 giant amphibian skeletons from the Popo Agie Formation near ...

Most people think of crocodilians as living fossils—stubbornly unchanged, prehistoric relics that have ruled the world's ...

Paleontologists found a group of four-legged Triassic creatures preserved in the same bone bed—but they don’t know what killed the animals ...

"There has been a bewildering array of different ecological roles for crocodylomorphs, from terrestrial herbivores and ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...

Could aquatic mammals, such as whales, orcas, and bottlenose dolphins, ever evolve to live on land again? It seems the ...

In its 4.5 billion year history, Earth has undergone five mass extinctions and we are potentially in a sixth era of mass ...