Reptilia - Sauropterygia - Polycotylidae

Full reference: L. B. Albright, D. D. Gillette, and A. L. Titus. 2007. Plesiosaurs from the Upper Cretaceous (Cenomanian-Turonian) Tropic Shale of southern Utah, part 2: Polycotylidae. Journal of Vertebrate Paleontology 27(1):41-58

Parent taxon: Polycotylidae according to H. F. Ketchum and R. B. J. Benson 2010

Sister taxa: Ceraunosaurus, Dolichorhynchops, Edgarosaurus, Georgiasaurus, Manemergus, Pahasapasaurus, Palmulainae, Palmulasaurinae, Palmulasaurus, Piratosaurus, Plesiopleurodon, Polycotyilnae, Polycotylinae, Sulcusuchus, Thililua, Trinacromerum

Subtaxa: Eopolycotylus rankini

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Type: Eopolycotylus rankini

Ecology: aquatic carnivore