The Tibetan Plateau, often called the "roof of the world," continues to baffle geologists and others curious about Earth’s ...

Understanding ancient ocean temperatures—particularly from the Cenozoic era (the past 66 million years), in which Earth experienced dramatic climate shifts—helps scientists reveal more about ...

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 ...

And 64 million years after dinosaurs went extinct, modern humans emerged in the Cenozoic era. The planet has seen an incredible series of changes—discover them for yourself.

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 ...

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 ...

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 ...

Primates are smart, flexible, and adaptive creatures. How have they responded to changes in climate over millions of years? Climate is the major factor that determines where a species can and ...

Like their lumbering grazers, most cycads have gone extinct. Their disappearance from their prior habitats began during the late Mesozoic and continued into the early Cenozoic Era, punctuated by the ...