Latirhinus uitstlani, a 'broad-nosed' saurolophine hadrosaurid (Dinosauria, Ornithopoda) from the late Campanian (Cretaceous) of northern Mexico

Albert Prieto-Marquez*, Claudia Ines Serrano Branas

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

22 Citations (Scopus)

Abstract

We describe a new genus and species of hadrosaurid dinosaur, Latirhinus uitstlani, from upper Campanian strata of the Cerro del Pueblo Formation in northern Mexico. The new taxon differs from other hadrosaurids, except Gryposaurus, in possessing a deep and arcuate dorsal process of the nasal; it differs from Gryposaurus, as well as from all other saurolophines, in having a broader narial foramen, and an anterodorsally curved deltoid crest of the scapula (convergent with Lambeosaurinae within the context of Hadrosauridae). L. uitstlani appears to be allied to 'kritosaurs', particularly to species of Gryposaurus, and it represents one of the southernmost saurolophines of North America. Likewise, L. uitstlani adds to the diversity of saurolophines in the southern Western Interior Basin and its occurrence in northern Mexico is consistent with the apparent predominance of 'kritosaurs' in southern Laramidia during late Campanian times.

Original languageEnglish
Pages (from-to)607-619
Number of pages13
JournalHistorical Biology
Volume24
Issue number6
DOIs
Publication statusPublished - 2012

Keywords

  • Dinosauria
  • Hadrosauridae
  • Laramidia
  • Cretaceous
  • Coahuila
  • Mexico
  • DEL PUEBLO FORMATION
  • BAJA-CALIFORNIA
  • PARRAS BASIN
  • COAHUILA
  • ORNITHISCHIA
  • MICHOACAN
  • REVISION
  • LOCALITY
  • SKULL
  • GENUS

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