New theropod dinosaur from the Upper Cretaceous of Patagonia sheds light on the paravian radiation in Gondwana

  title={New theropod dinosaur from the Upper Cretaceous of Patagonia sheds light on the paravian radiation in Gondwana},
  author={Mat{\'i}as J. Motta and Federico L. Agnolin and Federico Briss{\'o}n Egli and Fernando Emilio Novas},
  journal={The Science of Nature},
The fossil record of basal paravians in Gondwana is still poorly known, being limited to the Cretaceous unenlagiids from South America and the problematic Rahonavis from Madagascar. Here we report on a new paravian from the Cenomanian-Turonian (Late Cretaceous) of Río Negro province, NW Patagonia, Argentina. The new taxon exhibits a derived bird-like morphology of the forelimbs (e.g., robust ulna with prominent, anteriorly oriented, and proximally saddle-shaped radial cotyle and wide medial… 
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