Mesozoic Era / age of dinosaurs .

cretaceous period

continued fragmention of continents with the formation of the Atlanic ocean .

Flourishing of dinosaurs including Rex and Velociraptor

Extinction of dinosaurs and many other species that was running around due to an asteroid impact

145-66 million years ago

continued to breakup of pangaea formation of new ocean basins .

Dominance of each of them including the sauropods and theropods

201-145 million years

the word Dinosaurs comes from a Greek lauguage

the supercontinent into separate land masses

Appearance of early dinosaurs and marine masses

252-201 million years

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