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Back Blog The First Dinosaur - Eoraptor
09 Mar 2012

The First Dinosaur - Eoraptor

Some time during the middle Triassic period, about 230 million years ago, the very first dinosaurs evolved from their archosaur ancestors. Eoraptor, the "dawn raptor," wasn't a true raptor--that family of theropods only appeared toward the start of the Cretaceous period--but it's as good a candidate as any for the first true dinosaur. Befitting its early place on the dinosaur family tree, Eoraptor was only about two feet long from head to tail and weighed five pounds soaking wet, but it compensated for its puny size with sharp teeth and grasping, five-fingered hands.

Last modified on Monday, 03 June 2013 21:17

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Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages ... WRITTEN BY A PROFESSIONAL paleontologist specifically for young readers, this guide to the Dinosauria is packed...