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Did reptiles evolve from dinosaurs?

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No, dinosaurs, mammals and modern reptiles evolved from ancient reptiles. More specifically, dinosaurs (and therefore birds) and crocodilians evolved from a group of ancient reptiles called archosaurs. read more

The origin of the reptiles lies about 320–310 million years ago, in the swamps of the late Carboniferous period, when the first reptiles evolved from advanced reptiliomorph labyrinthodonts. read more

For example, the mammal-like reptiles of the Paleozoic epoch emerged before the archosaurs, which include dinosaurs. By amniotes, I mean the clade where every embryo is enclosed by an amniotic sac. The clade, amniotes, includes most chordates that live on land. read more

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