Humans first appeared in the _____ period. A) Mesozoic B) Paleozoic C) Jurassic D) Cenozoic

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asked Feb 2, 2021 103k views

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Ken Williams · Answer 1 · 2021-02-07T17:35:06+0000

Answer:

They first appeared in the fossil record around 66 million years ago, soon after the Cretaceous–Paleogene extinction event that eliminated about three-quarters of plant and animal species on Earth, including most dinosaurs.

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Humans first appeared in the _____ period. A) Mesozoic B) Paleozoic C) Jurassic D) Cenozoic

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