Cretaceous

Definition

A period in the Mesozoic Era lasting from approximately 145 to 66 million years ago, characterized by the dominance of dinosaurs and the diversification of flowering plants.

Etymology

From Latin 'creta', meaning 'chalk'.

Example

The Cretaceous period saw the evolution of many iconic dinosaur species, including Tyrannosaurus rex.

Related Terms

• Mesozoic
• Dinosaurs
• Flowering plants