Imagine trudging through a fern-filled forest 150 million years ago, and witnessing a towering mama dinosaursaurus giving a ...

New University of Maryland research suggests that dinosaur parenting strategies helped transform the Mesozoic world, as “latchkey kid dinosaurs” spread into ecological niches their parents left ...

An international team of American and Chinese paleontologists has discovered a new species of mammal that lived 125 million years ago during the Mesozoic Era, in what is now the Hebei Province in ...

Large butterfly-like insects known as Kalligrammatid lacewings, which fluttered through Eurasian fern- and cycad-filled woodland during the Mesozoic Era, have been extinct for more than 120 million ...

Scientists recently discovered the skull of an extremely tiny, bird-like dinosaur that could be the smallest known species of the Mesozoic era—the period in which giant dinos like brachiosaurus, ...

International researchers say they discovered a new species of snail in a piece of amber that is around 99 million years old. A study published in the peer-reviewed journal Cretaceous Research ...

Feb. 14 (UPI) --A study of ichthyosaurs, fish-like marine reptiles now extinct, shows the species adapted quickly but a stagnation in development led to their demise. Results of the University of ...

The fossilized bones of Poposaurus, an early crocodilian species that once roamed modern day Utah, spent more than 200 million years embedded in rock before Yale paleontologists began excavating them ...

When we think of the age of dinosaurs, we often picture huge reptiles like Tyrannosaurus rex or long-necked dinosaurs dominating the landscape. But the Mesozoic Era, spanning over 180 million years, ...