From the vast Mammoth Steppe to the extinction event that wiped them out, the woolly mammoth remains one of the most ...

Knife-toothed reptiles called sebecids went extinct on the mainland 10 million years ago. New fossil evidence puts them on an island 4 million years ago.

Next is the Mesozoic Era, which means ‘middle life’ and spans 252 to 66 million years ago. Finally, there is the Cenozoic Era, which began 66 million years ago and in which we live today.

In the early Cenozoic era, after the dinosaurs became extinct, the number and diversity of mammals exploded. In just 10 million years -- a brief flash of time by geologic standards -- about 130 ...

After the dinosaurs died out, mammals evolved into many different shapes and sizes as they filled the empty spaces left by the dinosaurs during the Cenozoic era. This period is also called the ...

A team of scientists found prehistoric animal footprints that indicate how creatures behaved in Oregon as far back as 50 ...

It is the last period in the Mesozoic Era. It comes after the Jurassic Period and before the Paleogene - the first period of the Cenozoic Era, our current era. It lasted a long time, nearly 80 million ...

3 min read At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine reptiles were conspicuously absent from the face of the Earth. Rodent-size ...

That puts Megatooth, and probably some of its ancestors, at the top step of the prehistoric food chain when it stalked the seas during the Cenozoic era, which began about 66 million years ago and ...

In turn, the extinction of the dinosaurs and several other animal groups 65.5 million years ago defines the beginning of the Cenozoic era. We are including several pages with geologic time scale data ...