Cranial Anatomy of Morturneria seymourensis from Antarctica, and the Evolution of Filter Feeding in Plesiosaurs of the Austral Late Cretaceous

@article{OKeefe2017CranialAO,
  title={Cranial Anatomy of Morturneria seymourensis from Antarctica, and the Evolution of Filter Feeding in Plesiosaurs of the Austral Late Cretaceous},
  author={F. Robin O'Keefe and Rodrigo A. Otero and Sergio Soto-Acu{\~n}a and Jose P. O'Gorman and Stephen J. Godfrey and Sankar Chatterjee},
  journal={Journal of Vertebrate Paleontology},
  year={2017},
  volume={37}
}
ABSTRACT This paper redescribes the holotype skull of the aristonectine elasmosaur Morturneria seymourensis from the upper Maastrichtian of Seymour Island, Antarctica. This description supports the validity of the genus Morturneria, distinct from the genus Aristonectes from Chile and Argentina. The paroccipital process of Morturneria is plesiomorphic, similar to Alexandronectes and unlike the autapomorphic occiput of Aristonectes. The palate of Morturneria is autapomorphic in possessing a… 
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