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Dinosaur fossil found with its last meal still inside of it - a mammal foot

  • Paleontologist Hans Larsson found a small mammal foot in the rib of a dinosaur fossil
  • It’s one of only 21 dinosaur fossils ever found with its food inside of it

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Close up photograph of the mammal foot among the ribs of Microraptor. Photo: McGill University / TNS

The key to a small, four-winged dinosaur species’ survival was not being fussy about what it ate, the examination of a rare fossil revealed.

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Palaeontologist Hans Larsson, a professor at McGill University in Montreal, Canada, was the first to notice a small mammal foot lodged in between the bones of a fossilised microraptor, a carnivorous dinosaur with wings.

The discovery shows the dinosaur ate a long list of animals including mammals, fish, birds, and lizards, the university announced in a press release on December 21.

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“These finds are the only solid evidence we have about the food consumption of these long-extinct animals – and they are exceptionally rare,” Larsson said in the release. The revelation that the animal was an “opportunistic” eater “puts a new perspective on how ancient ecosystems may have worked,” he added.

A drawing by palaeontologist Hans Larsson, a professor at McGill University, of a microraptor eating a small mammal. Photo: McGill University / TNS
A drawing by palaeontologist Hans Larsson, a professor at McGill University, of a microraptor eating a small mammal. Photo: McGill University / TNS
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