mesozoic

1. is an instance of: era, geological era - a major division of geological time; an era is usually divided into two or more periods
   has:

   • cretaceous, cretaceous period - from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
   • jurassic, jurassic period - from 190 million to 135 million years ago; dinosaurs; conifers
   • triassic, triassic period - from 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity
   same as: age of reptiles, mesozoic era

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