Galleonosaurus

Galleonosaurus (meaning "galleon lizard" as the upper jaw bone resembles an upturned galleon) is a genus of basal ornithopod dinosaur from the Wonthaggi Formation of the Gippsland region of Victoria, Australia. The type and only species is Galleonosaurus dorisae.

== Discovery and naming == thumb|left|Map showing the location of the Flats Rocks and ETRW localities in Victoria thumb|left|The Flats Rocks locality where the holotype was found The original specimen that would form the basis for Galleonosaurus was discovered at the Flat Rocks locality of the Wonthaggi Formation in 2008 by palaeontologist Gerry Kool. This was the same site that the related Qantassaurus, named nine years earlier in 1999, had been found. Flat Rocks is thought to have been deposited 125 million years ago in the late Barremian age of the Cretaceous, and is today located near Inverloch, Victoria within the Bunurong Marine National Park, on a shoreline rock platform. During the Cretaceous, the area would've been at a far higher latitude than today, within the Antarctic Circle. After discovery, specimen was catalogued at the Melbourne Museum and studied by Matthew C. Herne. Some of the remains were first described in an unpublished thesis by Herne in 2014, where they considered to potentially represented a second species of the genus Leaellynasaura. He and colleagues would go on to instead name the specimen as the new genus and species Galleonosaurus dorisae in 2019, in a paper published in the Journal of Paleontology. It is the fifth named ornithopod from Victoria, following Atlascopcosaurus, Leaellynasaura, Qantassaurus, and Diluvicursor.