English noun: Cretaceous period | |||
| 1. | Cretaceous period (time) from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants | ||
| Synonyms | Cretaceous | ||
| Instance hypernym | geological period, period | ||
| Part meronym | Age of Reptiles, Mesozoic, Mesozoic era | ||