Antarctopelta oliveroi Vertebrae

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Reappraisal of an armored dinosaur from the Upper Cretaceous of James Ross Island (Antarctica) Leonardo SALGADO and Zulma GASPARINI ABSTRACT The holotype of the upper Campanian armored dinosaur Antarctopelta oliveroi, a new species from James Ross Island, Antarctica, is described in detail. Key features include short neck vertebrae (about 70% of their height), well-developed transverse processes on tail vertebrae near the end (the width including these processes exceeds 30% of the rear joint width) and downward flatness, as well as smooth, circular bony plates surrounded by a mosaic of smaller polygonal plates with a rough surface texture and tiny button-like bones.