New Theropod Dinosaur Suggests that Small T. Rex-Like Arms Evolved Multiple Times (IMAGE)

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New Theropod Dinosaur Suggests that Small T. Rex-Like Arms Evolved Multiple Times

Caption

Life reconstruction of skeletal remains of Gualicho shinyae and stratigraphic and geographic details of the find. (A) Map of Rio Límay region of northern Patagonia, showing where the holotype of Gualicho shinyae was discovered (star) (B) Schematic stratigraphic column of lower part of Neuquén Group (Upper Cretaceous) strata exposed in the Neuquén Basin with approximate level at which the holotype of Gualicho shinyae was collected from the base of the Huincul Formation. See S1 Fig for excavation photos. (C) Skeletal reconstruction of Gualicho shinyae showing recovered elements in white and missing elements in grey shading.

Credit

Apesteguia et al. (2016); Artwork by J. Gonzalez

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