Enigmacursor darted around North America in the Late Jurassic 145-150 million years ago and its skeleton is now on display in ...

Teeth can tell a life’s story, even when they’re 150 million years old. One of the new frontiers in paleontological research ...

Answer by Adriana Heguy, molecular biologist, genomics researcher, on Quora: The biggest animals are plant eaters, not just in the dinosaur age but in our age too. The biggest land animal is the ...

A 125-million-year-old fossil from the early Cretaceous shows the skeletons of a smaller mammal biting a larger horned dinosaur, suggesting a much more complex ancient food web.

At the beginning of the Triassic period, dinosaurs were one of many lizards roaming the Earth. "Most of the animals in the ecosystem were the various relatives of crocodiles," Qvarnström says.