Stegosaurus
Related Category: Vertebrate Zoology
(stgsõr´s) [Gr.,=roof lizard], quadriped ornithischian dinosaur of the late Jurassic period.
Did The Stegosaurus Have Two Brains
The picture of the dinosaur indicates it had a small brain in the skull. One theory suggests they had a second brain near the hips in the spine.
For example, the principal Jurassic dinosaur - Stegosaurus - already had been extinct for some 80 million years before the appearance of the Cretaceous dinosaur known as Tyrannosaurus.
Kentrosaurus lived during the Late Jurassic Period, about 155 to 140 million years ago. It is related to the larger, well-known Stegosaurus of North America.
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Lesothosaurus diagnosticus was one of the most primitive and earliest ornithischians, or "bird-hipped" dinosaurs. Ornithischians were one of the two major groups of dinosaurs and included such familiar species as the armor-plated Stegosaurus and ...
 See also: Tyrannosaurus, Reptile, Apatosaurus, Iguanodon, Diplodocus
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