![]() ![]() The victim of its attack was Psittacosaurus lujiatunensis, a bipedal, plant-eating beaked dinosaur – and a distant relative to the later triceratops – which was about the size of a cocker spaniel. The fossilised mammal, discovered in the Lujiatun member of the Lower Cretaceous Yixian formation in China in May 2012, was identified by the team as Repenomamus robustus – an ancient creature about the size of a domestic cat. ![]() Even the smaller mammals could pose a threat, foreshadowing their rise to dominance 66m years ago.” Researchers said the discovery challenged a long-held view of early mammals as “fodder” for dinosaurs.ĭr Jordan Mallon, a co-author of the study, based at the Canadian Museum of Nature, said: “This new fossil teaches us that in the Mesozoic ‘age of dinosaurs’, dinosaurs were not always king. ![]()
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