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单词 pachyrhinosaurin
释义

pachyrhinosaurin

English

A skull of Achelousaurus horneri, a pachyrhinosaurin

Noun

pachyrhinosaurin (plural pachyrhinosaurins)

  1. Any of the dinosaurs of the tribe †Pachyrhinosaurini, a clade of centrosaurine ceratopsids.
    • 2015 July 9, “Cranial Anatomy of Wendiceratops pinhornensis gen. et sp. nov., a Centrosaurine Ceratopsid (Dinosauria: Ornithischia) from the Oldman Formation (Campanian), Alberta, Canada, and the Evolution of Ceratopsid Nasal Ornamentation”, in PLOS ONE, DOI:10.1371/journal.pone.0130007:
      In addition, we modified Characters 59 and 61, which describe the epiparietal (ep) morphology at loci ep 2 and ep 3, to include a state that differentiates between rugose, tongue-shaped horncores and greatly elongate, spike-like horncores that, for example, characterize the ep 3 locus in pachyrhinosaurins and some other taxa (e.g., Styracosaurus).
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