cretaceous

/kɹɛtˈe‍ɪʃəs/

/kɹɪˈteɪʃɪs/

Cretaceous

from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants

cretaceous

relating to the period between approximately 146 and 65 million years ago, when dinosaurs lived (until their extinction)

abounding in chalk

Examples

1. The most recent one, the end Cretaceous extinction of course is responsible for the extinction of the dinosaurs.

2. Tyrannosaurus rex roamed the Cretaceous period, between 68 and 66 million years ago.

3. Ichthyosaurs disappeared sometime during the Cretaceous.

4. The Cretaceous also meant even more dinosaurs!