Cretaceous Period — synonyms, definition
1. Cretaceous period (Noun)
1 synonym
Cretaceous
1 definition
Cretaceous period (Noun) — From 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants.
2 types of
geological period period
3 parts of
Age of Reptiles Mesozoic Mesozoic era