†unranked clade Pachyrhinosaurini Fiorillo and Tykoski 2012 (ceratopsid)

Reptilia - Neornithischia - Ceratopsidae

Full reference: A. R. Fiorillo and R. S. Tykoski. 2012. A new Maastrichtian species of the centrosaurine ceratopsid Pachyrhinosaurus from the North Slope of Alaska. Acta Palaeontologica Polonica 57(3):561-573

Parent taxon: Centrosaurinae according to M. J. Ryan et al. 2017

See also Fiorillo and Tykoski 2012

Sister taxa: Albertaceratops, Brachyceratops, Centrosaurini, Diabloceratops, Machairoceratops, Monoclonius, Nasutoceratopsini, Sinoceratops, Wendiceratops, Xenoceratops

Subtaxa: Achelousaurus Einiosaurus Pachyrhinosaurus Pachyrostra

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Type: Pachyrhinosaurus

Ecology: ground dwelling herbivore


• Cretaceous of Canada (11: Alberta, Northwest Territories collections), United States (7: Alaska, Montana)

Total: 18 collections each including a single occurrence

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