首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >First report on a new basal eusuchian crocodyliform with multicusped teeth from the Upper Cretaceous (Santonian) of Hungary
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First report on a new basal eusuchian crocodyliform with multicusped teeth from the Upper Cretaceous (Santonian) of Hungary

机译:关于匈牙利上白垩统(桑托尼亚)的一种新的具有多尖齿的基底真鳄鳄的首次报道

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摘要

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.
机译:一种新的化石鳄形动物,位于活鳄鱼的祖先附近,Iharkutosuchus makadii gen。等。十一月这里描述了来自匈牙利西部拉尔库特的上白垩统切塞班尼亚组。系统发育分析表明,Iharkutosuchus是早白垩世Hylaeochampsa的姊妹分类群。这种基础的真面目动物极具异性,拥有复杂的多尖齿。牙齿的磨损和肌肉结构表明下颌在咬合过程中进行颊舌运动,与哺乳动物的牙齿进行比较表明,马卡迪伊豆以纤维非常丰富的植物结构为食。

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