Kingdom Animalia Suborder Plesiosauroidea Species U. demoscyllus Phylum Chordata Order Plesiosauria | Class Sauropsida Family Leptocleididae Scientific name Umoonasaurus demoscyllus Rank Genus | |
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Similar Nichollssaura, Plesiosauria, Thililua, Maresaurus, Bishanopliosaurus | ||
Umoonasaurus is an extinct genus of plesiosaur belonging to the family Leptocleididae. This genus lived approximately 115 million years ago (Aptian-Albian) in shallow seas covering parts of what is now Australia. It was a relatively small animal around 2.5 m (8 ft) long. An identifying trait of Umoonasaurus is three crest-ridges on its skull.
Umoonasaurus is known from a relatively complete skeleton preserved as opal from Coober Pedy in South Australia. This specimen was prepared by Paul Willis at the Australian Museum, Sydney, and became the focus of a nationwide fundraising appeal coordinated by ABC TV's Quantum program.
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References
Umoonasaurus Wikipedia(Text) CC BY-SA