Wintonotitan

Wintonotitan was one of three new dinosaurs named from the Winton Formation in 2009, along with Diamantinasaurus and Australovenator.1

Its fossils were first discovered in the 1970s by Keith Watts, who donated them to the Queensland Museum. The species name wattsi honors him.2

Wintonotitan had unique tail bones that were biconvex (rounded on both ends) near the tip, which is different from most other sauropods.2

It lived in a river plain environment with large rivers, swamps, and lakes, after the Eromanga Sea had retreated. The climate was subtropical with abundant rainfall.2

Wintonotitan was a relatively small titanosaur, reaching about 15 to 16 metres long, while some other titanosaurs could grow to 35 metres.2

The fossils found include most of the front limb and shoulder girdle, tail vertebrae, ribs, and hip bones, but no skull or teeth have been discovered yet.2