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Fossils of three new species of dinosaurs have been discovered in Australia, including a meat-eater larger than Velociraptor from the Jurassic Park movies, suggesting Australia may have a more complex prehistoric past

The meat-eating theropod dinosaur has been called Australovenator (nicknamed Banjo after Australian bush poet Banjo Patterson) and the two plant-eating sauropod dinosaurs are Wintonotitan and Diamantinasaurus

The two herbivore dinosaurs were different kinds of titanosaur, the largest type of dinosaur ever to have lived.

Wintonotitan was a tall animal which may have fitted into a giraffe-like niche, while the stocky Diamantinasaurus was more hippo-like, said Hocknull.

Two of the dinosaurs were found buried together in a 98-million-year-old "billabong" or waterhole.