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Polyonax Cope 1874 (ceratopsid)

Reptilia - Neornithischia - Ceratopsidae

PaleoDB taxon number: 52929

Full reference: E. D. Cope. 1874. Report on the stratigraphy and Pliocene vertebrate paleontology of northern Colorado. Bulletin of the United States Geological and Geographical Survey of the Territories 1(1):9-22

Parent taxon: Ceratopsidae according to P. Dodson et al. 2004

Sister taxa: Agathaumas, Bison alticornis, Centrosaurinae, Ceratopsinae, Ceratopsipes, Chasmosaurinae, Monocloniinae, Pachyrhinosaurinae, Triceratops galeus, Triceratops ingens, Triceratops maximus, Ugrosaurus, Proceratops

Subtaxa: Polyonax mortuarius

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Type: Polyonax mortuarius

Ecology: ground dwelling herbivore