Reptilia - Neornithischia - Ceratopsidae

PaleoDB taxon number: 53956

Full reference: S. D. Sampson. 1994. Two new horned dinosaurs (Ornithischia: Ceratopsidae) from the Upper Cretaceous Two Medicine Formation, Montana, USA. Journal of Vertebrate Paleontology 14(3, suppl.):44A

Parent taxon: Centrosaurinae according to D. C. Evans and M. J. Ryan 2015

Sister taxa: Albertaceratops, Avaceratops, Brachyceratops, Centrosaurus, Coronosaurus, Diabloceratops, Einiosaurus, Machairoceratops, Monoclonius, Nasutoceratops, Nasutoceratopsini, Pachyrhinosaurini, Pachyrhinosaurus, Rubeosaurus, Sinoceratops, Spinops, Styracosaurus, Wendiceratops, Xenoceratops

Subtaxa: Achelousaurus horneri

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Ecology: ground dwelling herbivore