‘Umoona’ is an aboriginal word that means ‘long life,’ so this plesiosaur's name translates to "long life lizard.'

Did you know that fossils of the Umoonasaurus were found preserved in opal?

Unlike other plesiosaurs, the Umoonasaurus has three distinct crest-ridges on its skull.

The Umoonasaurus was discovered in Coober Pedy, which is considered the ‘opal capital of the world’!