The last hadrosaurid dinosaurs of Europe: A new lambeosaurine from the Uppermost Cretaceous of Aren (Huesca, Spain)

Xabier Pereda-Suberbiola, José Ignacio Canudo, Penélope Cruzado-Caballero, José Luis Barco, Nieves López-Martínez, Oriol Oms, José Ignacio Ruiz-Omeñaca

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60 Citations (Scopus)

Abstract

A new hadrosaurid dinosaur, Arenysaurus ardevoli gen. et sp. nov., from the Late Maastrichtian of Aren (Huesca, South-central Pyrenees) is described on the basis of a partial, articulated skull, mandibular remains and postcranial elements, including vertebrae, girdle and limb bones. Arenysaurus is characterized by having a very prominent frontal dome; nearly vertical prequadratic (squamosal) and jugal (postorbital) processes, and deltopectoral crest of the humerus oriented anteriorly. Moreover, it possesses a unique combination of characters: short frontal (length/width approximately 0.5); midline ridge of parietal at level of the postorbital-squamosal bar; parietal excluded from the occiput; squamosal low above the cotyloid cavity. A phylogenetical analysis indicates that Arenysaurus is a rather basal member of Lambeosaurinae and the sister-taxon to Amurosaurus and the Corythosaurini-Parasaurolophini clade. The phylogenetic and biogeographical relationships of Arenysaurus and other lambeosaurines suggest a palaeogeographical connection between Asia and Europe during the Late Cretaceous. © 2009 Académie des sciences.
Original languageEnglish
Pages (from-to)559-572
JournalComptes Rendus - Palevol
Volume8
DOIs
Publication statusPublished - 1 Sep 2009

Keywords

  • Arenysaurus ardevoli nov. gen. et sp.
  • Hadrosauridae
  • Huesca
  • Iberian Peninsula
  • Maastrichtian

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