Cretaceous Dinosaurs (Latest Edition of the Illustrated Dictionary of Dinosaur Exploration)

Author: Robert Matthews
Publisher:
Publication Date: 2003-02-01
Features: The Cretaceous period (137 million to 67 million years ago) was the peak era of the dinosaurs. The number of dinosaur species during this period was greater than in any other time. In many respects, the Cretaceous was a transitional period during which dinosaur life shifted from ancient forms to modern forms. The emergence of flowering plants during this period changed the evolutionary patterns, leading to the emergence of many new types of dinosaurs. The continents at the time, much like today, were separated, and the forms of life on Earth also became more diverse. 67 million years ago, dinosaurs along with other animals and plants underwent a mass extinction, and the Cretaceous period came to an end.