For the Cenozoic period, which began about 70 million years ago and continues today, evidence derived from marine sediments provide a detailed, and fairly continuous, record for climate change.

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 ...

Learn about the time period that took place 65 to 23 million years ago. 3 min read At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine ...

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 years, making it the longest geological ...

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 ...

Greater abundance of the lighter weight 16O (8 protons, 8 neutrons) is indicative of warmer periods whereas greater ... Covert, H.H. Biology of early Cenozoic primates. In Comparative Primate ...