First dinosaurs and first egg-laying mammals | vedclass

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(B) The evolutionary history of life indicates that the $Triassic$ period,which occurred approximately $251$ to $201$ million years ago,was a signific

Vedclass · Accepted Answer

Triassic period

Vedclass · Answer

(B) The evolutionary history of life indicates that the $Triassic$ period,which occurred approximately $251$ to $201$ million years ago,was a significant time for terrestrial vertebrates. During the $Triassic$ period,the first dinosaurs appeared,and the first egg-laying mammals also evolved. Therefore,the correct answer is the $Triassic$ period.

First dinosaurs and first egg-laying mammals originated in which period?

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