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 ...