Umoonasaurus
Umoonasaurus is an extinct genus of plesiosaur belonging to the family Leptocleididae. This genus lived approximately 115 million years ago during the Early Cretaceous period (Aptian-Albian stages), in shallow seas covering parts of what is now Australia. It was a relatively small animal around 2.5 metres (8.2 ft) long. An identifying trait of Umoonasaurus is three crest-ridges on its skull.
| Umoonasaurus | |
|---|---|
| Holotype skull | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Order: | †Plesiosauria |
| Family: | †Leptocleididae |
| Genus: | †Umoonasaurus Kear, Schroeder & Lee, 2006 |
| Species: | †U. demoscyllus |
| Binomial name | |
| †Umoonasaurus demoscyllus Kear, Schroeder & Lee, 2006 | |
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