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Under construction
Taxon: Genus †Pachyrhinosaurus Sternberg, 1950 (dinosaur)
 Entity: 

Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Ornithischia - (Family) Ceratopsidae

Included, by definition, in node-based clade

†Ceratopsidae (Clade) Marsh 1888 Ref: P.C. Sereno, 1998: table 4 (p. 62).

Included, by definition, in branch-based clade

†Centrosaurinae (Clade) Lambe 1915 Ref: P.C. Sereno, 1998: table 4 (p. 62).

Excluded, by definition, from branch-based clade

†Ceratopsinae (Clade) Abel 1919 Ref: P.C. Sereno, 1998: table 4 (p. 62).

Current position

†Ceratopsidae (Family) Marsh, 1888 Ref: D. Lambert & the Diagram Group, 1991(1997)
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Last updated: 1 Feb 2024