Paleontologists in Argentina have discovered a new predatory dinosaur -- the fossils of which contained a crocodile bone within the dinosaur's mouth. The new species, dubbed Joaquinraptor casali, is part of megaraptoran family of theropods -- a group known for their elongated skulls, powerful forearms and large claws, according to a paper published Tuesday in Nature Communications . Megaraptorans were found across Asia, Australia and South America, but the understanding of the group has been restricted in the past due to a lack of complete fossils, according to the paper. The well-preserved and partially articulated fossils of J. casali were found in the Lago Colhué Huapi Formation in Patagonia, Argentina. The set of fossils included much of the skull, fore and hind limbs, ribs and vertebr

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