Which animals did not survive the mesozoic extinction?

Dinosaurs

Many forms of plants, invertebrates, and fishes evolved during the  Mesozoic Era.  Since the dinosaurs were the dominant animals on land then, the Mesozoic Era is called the Age of Reptiles. Dinosaurs, however, became extinct even before the end of the Era.  

a = executive branch; b = judicial branch

gag reflex, poor dentition, gum retraction

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