|  Cretaceous 
 
 from 135 million to 63 million years ago;
 end of the age of reptiles;
 appearance of modern insects and flowering plants
 • Syn:
 Cretaceous period
 • Instance Hypernyms:
 period, geological period
 • Part Holonyms:
 Mesozoic, Mesozoic era, Age of Reptiles
 
 of or relating to or denoting the third period of the Mesozoic era
 
 
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