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 ...

Fossil evidence suggests that the snake lived approximately 60 million years ago, during the early part of the Paleogene period. The ancient mosasaur, a giant marine lizard, was a formidable ...

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 ...

It’s long been theorized that it was a lone asteroid that caused dinosaurs to go extinct. However, a team of scientists have ...

This is, of course, a fallacy. There is evidence that their ancestors were common in North America 30 million years ago during the latter stages of the Paleogene period. A 55-million-year-old fossil ...