First report on a new basal eusuchian crocodyliform with multicusped teeth from the Upper Cretaceous (Santonian) of Hungary

Attila Osi, James M. Clark, David B. Weishampel

Research output: Contribution to journalArticle

Abstract

A new fossil crocodyliform lying near the ancestry of living crocodylians, Iharkutosuchus makadii gen. et sp. nov. from the Upper Cretaceous Csehbánya Formation of Iharkút, western Hungary is described here. Phylogenetic analysis indicates that Iharkutosuchus is the sister taxon of the Early Cretaceous Hylaeochampsa. This basal eusuchian is extremely heterodont and possesses complex multicusped teeth. Tooth wear and muscle architecture indicate buccolingual movement of the mandible during occlusion, and comparison with mammalian teeth suggests that I. makadii fed on very fibrous plant structures.

Original languageEnglish (US)
Pages (from-to)169-177
Number of pages9
JournalNeues Jahrbuch fur Geologie und Palaontologie - Abhandlungen
Volume243
Issue number2
DOIs
StatePublished - Feb 1 2007

Keywords

  • Crocodyliformes
  • Eusuchia
  • Heterodont
  • Hungary
  • Hylaeochampsidae
  • Late cretaceous

ASJC Scopus subject areas

  • Palaeontology

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