Bones of a dinosaur's snack found in fossil 120 million years later - Business Insider

• Paleontologist Hans Larsson recovered a tiny mammal ft successful the rib of a dinosaur fossil. 
• The reptile was carnivorous and bird-like, according to McGill University.
• It's 1 of lone 21 dinosaur fossils ever recovered with its nutrient wrong of it. 

The cardinal to a small, four-winged dinosaur species' endurance was not being fussy astir what it ate, the introspection of a uncommon fossil revealed. 

Paleontologist Hans Larsson, a prof astatine McGill University, was the archetypal to announcement a tiny mammal ft lodged successful betwixt the bones of a fossilized Microraptor, a carnivorous dino with birdish wings. The find shows the dino ate a agelong database of animals, including mammals, fish, birds, and lizards, the assemblage announced successful a December 21 property release. 

"These finds are the lone coagulated grounds we person astir the nutrient depletion of these long-extinct animals – and they are exceptionally rare," Larsson said successful the release. The revelation that the carnal was an "opportunistic" eater "puts a caller position connected however past ecosystems whitethorn person worked," helium added. 

Only 20 different fossils person been recovered with the fossilized bones of their meals inside, according to McGill, and this is the archetypal clip a fossil has shown that immoderate dinosaur ate mammals,  the Economic Times reported.