Dinosaurs first appeared during the ____________ period.

Question

Quizplus · Accepted Answer

Dinosaurs first appeared during the Triassic period, which occurred approximately 251 to 199 million years ago. The Cambrian period occurred much earlier, approximately 541 to 485 million years ago, and is known as the time period when many new animal species rapidly evolved. The Devonian period occurred from approximately 416 to 359 million years ago, during which fish and early amphibians were prominent. The Permian period occurred from approximately 299 to 251 million years ago, and was marked by a major extinction event that wiped out many species, including most of the dominant reptiles of the time.

Dinosaurs First Appeared During the ____________ Period