Definition of Cretaceous in English:
- As such, they have been found fossilized in Jurassic and Cretaceous deposits, and have been used to reconstruct paleoclimates.
- The foothills of the Pyrenees are composed of sedimentary Jurassic and Cretaceous limestones which favour the creation of natural cave systems.
- The Jurassic and Cretaceous together were the age of giant reptiles.
The Cretaceous lasted from about 146 million to 65 million years ago. The climate was warm, and the sea level rose; the period is characterized especially in northwestern Europe and parts of North America by the deposition of chalk. The first flowering plants emerged, and the domination of the dinosaurs continued although they died out quite abruptly toward the end of it
Definition of Cretaceous in:
- British & World English dictionary