What is significant about the early Tertiary period? | Cheap Nursing Papers

What is significant about the early Tertiary period?

The early Tertiary marks the end of the dominance of the dinosaurs and reptiles and the rise of mammals.

The mass extinction event that occurred that marked the end of the Mesozoic wiped out roughly 76 percent of land and marine organisms including the dinosaurs. The removal the dinosaurs, which until then were the dominant species, allowed for the evolution of mammals.

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