Dinosaurs were a diverse group of reptiles which are widely belived to have mostly gone extinct during or immediately following the Cretaceous–Tertiary extinction event. While birds are widely believed to be descendants of dinosaurs, they do not fit into this category. At the same time, neither do synapsids such as Dimetrodon grandis and pterosaurs like Pteranodon longiceps.

Pages in category "Dinosaurs"

The following 2 pages are in this category, out of 2 total.

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