Pinacosaurus
From Wikipedia, the free encyclopedia
| Pinacosaurus Temporal range: Upper Cretaceous |
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| Skeleton reconstruction | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| Superorder: | Dinosauria |
| Order: | Ornithischia |
| Suborder: | Thyreophora |
| Infraorder: | Ankylosauria |
| Family: | Ankylosauridae |
| Subfamily: | Ankylosaurinae |
| Genus: | Pinacosaurus |
Pinacosaurus ("plank lizard") is a genus of medium-sized ankylosaur dinosaurs from the Upper Cretaceous of Mongolia and China. It lived about 80–75 million years ago. Pinacosaurus had between two and five additional holes near each nostril, which have not been explained.