Journal
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN
Volume 243, Issue 2, Pages 169-177Publisher
E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG
DOI: 10.1127/0077-7749/2007/0243-0169
Keywords
crocodyliformes; Eusuchia; Hylaeochampsidae; heterodont; Late Cretaceous; Hungary
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A new fossil crocodyliform lying near the ancestry of living crocodylians, Iharkutosuchus makadii gen. et sp. nov. from the Upper Cretaceous Csehbanya Formation of lharkut, 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.
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