New wallaby-sized dinosaur from the ancient Australian-Antarctic rift valley

A new, wallaby-sized herbivorous dinosaur has been identified from five fossilized upper jaws in 125 million year old rocks from the Cretaceous period of Victoria, southeastern Australia.

Reported in the Journal of Paleontology, the new dinosaur is named “Galleonosaurus dorisae,” and is the first dinosaur named from the Gippsland region of Australia in 16 years. According to Dr Matthew Herne, a Postdoctoral Fellow at the University of New England, NSW, and lead author of the new study, “the jaws of Galleonosaurus dorisae include young to mature individuals–the first time an age range has been identified from the jaws of an Australian dinosaur.”

Galleonosaurus was a small-bodied herbivorous dinosaur within the large family called ornithopods. “These small dinosaurs would have been agile runners on their powerful hind legs,” explained Dr Herne.

The name Galleonosaurus dorisae refers to the shape of the upper jaw, resembling the upturned hull of a sailing ship called a galleon, and also honours the work of Dr Doris Seegets-Villiers, who produced her PhD thesis on the palaeontology of the locality where the fossils were discovered.

Research article: New small-bodied ornithopods (Dinosauria, Neornithischia) from the Early Cretaceous Wonthaggi Formation (Strzelecki Group) of the Australian-Antarctic rift system, with revision of Qantassaurus intrepidus Rich and Vickers-Rich, 1999

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