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Pachyrhinosaurini

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Classification

Pachyrhinosaurini was defined in 2012 by Fiorillo & Tykoski. It was defined as all centrosaurine ceratopsids more closely related to Pachyrhinosaurus canadensis than to Centrosaurus apertus. It was defined during the description of Pachyrhinosaurus perotorum, a species from Alaska.

The cladogram below represents the findings of Lund et al., 2016, in their description of Machairoceratops cronusi. Wendiceratops pinhornensis, Xenoceratops foremostensis, and Sinoceratops zhuchengensis were resolved as members of the Pachyrhinosaurini and Einiosaurus was resolved as a pachyrostran and the sister taxon of Achelousaurus.


The cladogram below represents a more recent phylogenetic analysis that included Pachyrhinosaurini by Chiba et al. (2017). Wendiceratops, Xenoceratops, and Sinoceratops were not resolved as members of the Pachyrhinosaurini and Einiosaurus was not resolved as a pachyrostran.

More in Animals

Monotypic taxonTaxonomic group with only one subordinate taxonSpecies descriptionFormal description of a discovered speciesParaphylyType of taxonomic groupIUCN Red ListInventory of the global conservation status of biological speciesSubtropicsGeographic and climate zoneCommon nameName generally used for a taxon, group of taxa or organism(s)