The 125 million-year-old fossil was discovered in the Lujiatun Member of the Lower Cretaceous Yixian formation in China back in 2012.
Life restoration showing Repenomamus robustus grappling with Psittacosaurus lujiatunensis. now suggest that smaller mammals attacking larger dinosaurs may have occurred more frequently than initially thought. According to the study, the fossil of anotherwithin its stomach.
And while there have been cases of fossil forgeries in the past, the study’s authors believe this isn’t the case with this discovery because of how the two creatures were intertwined when they met their doom.The lack of bite marks on the dinosaur’s skeleton, the position of the mammal on top of the dinosaur and the grasping and biting actions of the mammal suggest that it was preying on the weaker dinosaur, which was three times its size, according to the study.
Details of the fossil show the mammal gripping the dinosaur’s jaw and leg while biting into its rib cage. That position suggests, according to the study, that the mammal was likely preying on the dinosaur and wasn’t scavenging the carcass of one that was already dead before they were both buried for 125 million years.
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