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No you are not a dinosaur. Human beings are mammals which have a completely different evolutionary path to dinosaurs.

Mammals evolved from a subclass of reptiles called synapsids (mammal like reptiles). Archaeothyris the 1st undisputed synapsid dates back to 305 million years ago during the Carboniferous Period. Synapsids went on to dominate the world until the end of the Permian Period about 251.4 million years ago. During the Triassic Period about 200 million years ago the 1st true mammals appeared.

Dinosaurs on the other hand evolved from a completely different branch of the reptile family the archosaurs. Archosaurs 1st evolved during the Permian Period 299 - 251 million years ago. They lived in the shadows of synapsids until after the Permian-Triassic Extinction when they started to overtake them as the dominant animals on Earth.

Archosaurs went on to evolve into 3 different branches :- dinosaurs (about 230 million years ago), pterosaurs (about 220 million years ago) and crocodilians (about 200 million years ago). Most species of dinosaurs were to die out 65.5 million years ago but one branch of therapod dinosaur was to survive and still lives until this day, the birds.

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15y ago

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