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Adjective: cretaceous  kri'tey-shus
  1. Abounding in chalk
Adjective: Cretaceous
  1. Of or relating to or denoting the third period of the Mesozoic era
Noun: Cretaceous
  1. The period from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
    - Cretaceous period

Type of: geological period, period

Part of: Age of Reptiles, Mesozoic, Mesozoic era

Encyclopedia: Cretaceous