Pachyrhinosaurini
Pachyrhinosaurins |
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Skull of a Pachyrhinosaurus canadensis | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Order: | †Ornithischia |
Family: | †Ceratopsidae |
Subfamily: | †Centrosaurinae |
Tribe: | †Pachyrhinosaurini Fiorillo & Tykoski, 2012 |
Type species | |
Pachyrhinosaurus canadensis |
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Subdivisions[3] | |
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Pachyrhinosaurini was a subfamily of centrosaurine dinosaurs. The clade existed during the Late Cretaceous, about 84.9 to 66 million years ago, evolving during the earliest Campanian,[4] and becoming extinct in the Maastrichtian.[2][5]
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 petorum, a species from Alaska[2]
Below is a cladogram by Sampson et al. 2013,[3] with clade names such a Pachyrhinosaurini as defined by Fiorillo and Tykoski (2012).[2]
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See also
References
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