“The dinosaur fauna from the Broome Sandstone is a lot like what we see in similarly aged faunas from South Africa and South America, and is probably similar to the more globally distributed dinosaur faunas of the Late Jurassic Period. ![]() “Both sauropods and ornithopods were diverse and abundant, and stegosaurs and ankylosaurs were the only type of four-legged, bird-hipped dinosaurs. “The results of our study show that the general composition of Australia’s better-known, younger dinosaur fauna was already in place by 127 million to 140 million years ago,” he said. Dr Salisbury said the tracks at Walmadany were considerably older. Most of Australia’s dinosaur fossils come from the eastern side of the continent, and are between 90 million and 115 million years old.
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