New Carnivorous Dinosaur Unearthed in Argentina paleontology science
The newly-identified dinosaur species lived in what is now Argentina some 70 million years ago ., the ancient creature was between 9 and 10 m long and weighed up to 5 tons., a group of theropod dinosaurs known from Gondwana landmasses and Asia.
“Megaraptorans are a group of predatory dinosaurs that inhabited Asia, Australia and South America from Barremian through Maastrichtian times,” said CONICET paleontologist“Most members of this group are known from the Early to Late Cretaceous, with Maastrichtian megaraptorans known only from isolated and poorly informative remains.”
“These theropods are diagnosed by their elongate skulls, the presence of apicobasally short and strongly curved teeth that are 8-shaped in cross section, highly pneumatic axial skeleton reaching to the mid-caudal vertebrae, and long and powerful arms bearing large and sharp manual claws on digits I and II.”
“Although some authors have interpreted megaraptorans as an archaic group of allosauroid theropods, increasing evidence lends support to the hypothesis that they are, instead, members of“Aside from the consensus currently arrived on the phylogenetic allocation of Megaraptora among Coelurosauria, the internal relations of this group remain poorly resolved.”
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