Asilisaurus kongwe from the Middle Triassic of Tanzania, with the sail?backed archosaur Hypselorhachis in the background Photo: Marlene Donnelly/Field Museum From The Telegraph:
Dinosaurs reign over the earth may date back further than previously thought, a new discovery suggests.
Palaeontologists have found a four-legged ancestor of the prehistoric creatures that hails from 250 million years ago – 10 million years earlier than first thought.
The large dog sized creature, which ate meat and vegetation, is thought to be a similar relation to dinosaurs as chimps are to humans.
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