(Diamantina River lizard).
Named By: Scott Hocknull et al. - 2009.
Classification: Chordata, Reptilia, Dinosauria, Sauropoda, Titanosauria, Titanosauroidea, Lithostrotia.
Species: D. matildae (type).
Size: Estimated 15-16 meters long.
Known locations: Australia, Queensland, Winton Formation.
Time period: Albian of the Cretaceous.
Fossil representation: Partial post cranial remains.
along with Wintonotitan
were the first sauropod
dinosaurs discovered in
Australia since the discovery of Austrosaurus
over seventy-five years
earlier. Diamantinasaurus has the nickname
'Matilda' and this along
with the type species D. matildae, are in reference to the folk song
Much of the skeleton of Diamantinasaurus is still unknown. There is no known skull, and the vertebrae are missing. Only parts of the limbs, ribs, shoulder blade have been recovered, but they do indicate that Diamantinasaurus was one of the titanosaurids. They also show the presence of a thumb claw, something which is not normally seen in titanosaurians.
Another dinosaur, the theropod Australovenator was also found in close proximity to the remains of Diamantinasaurus.
- New Mid-Cretaceous (Latest Albian) Dinosaurs from Winton, Queensland, Australia - Scott A. Hocknull, Matt A. White, Travis R. Tischler, Alex G. Cook, Naomi D. Calleja, Trish Sloan & David A. Elliott - 2009.
- Revision of the sauropod dinosaur Diamantinasaurus matildae Hocknull et al. 2009 from the mid-Cretaceous of Australia: Implications for Gondwanan titanosauriform dispersal. - Gondwana Research. 27 (3): 995–1033. - S. F. Poropat, P. Upchurch, P. D. Mannion, S. A. Hocknull, B. P. Kear, T. Sloan, G. H. K. Sinapius & D. A. Elliot - 2014.