CentrosaurinaeCerapodaCeratopsiaCeratopsidaeCeratopsoideaCoronosauriaDinosauriaEucentrosauraGenasauriaLate CretaceousMarginocephaliaNeoceratopsiaNeornithischiaNorth AmericaOrnithischiaPachyrhinosauriniPachyrostra

Pachyrhinosaurus perotorum

Dinosaur: Pachyrhinosaurus perotorum


Type: Ceratops

Length*: 5.2 m 17.1 ft
Weight*: 2 tons 4,409 lb
*The largest known specimen

ESR: 3 / 4 (estimated size reliability)

Period

Epoch: Late Cretaceous
Stage: Late Campanian-Early Maastrichtian

Details

Status: valid
Autor: Fiorillo & Tykoski
Year: 2012
Area: North America
Country: USA
Region: Alaska
Formation: Prince Creek

Classification

Dinosauria
Ornithischia
Genasauria
Neornithischia
Cerapoda
Marginocephalia
Ceratopsia
Neoceratopsia
Coronosauria
Ceratopsoidea
Ceratopsidae
Centrosaurinae
Eucentrosaura
Pachyrhinosaurini
Pachyrostra


Other

Material: At least 10 individuals.
References: Ronald S. Tykoski, Anthony R. Fiorillo & Kentaro Chiba (2019). New data and diagnosis for the Arctic ceratopsid dinosaur Pachyrhinosaurus perotorum.

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