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 ...

Several factors contributed to the survival of crocodiles, turtles, lizards and birds 66 million years ago, say our readers ...

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 ...

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 ...

Termed the Cretaceous-Paleogene (also called the K-T and K-P ... Previous research claimed that the rock was a “long-period” comet from the Oort Cloud—an icy sphere of debris around the ...