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The prefrontal of Rinconsaurus caudamirus (Sauropoda, Titanosauria) as a crocodyliform ilium
Cretaceous Research ( IF 1.9 ) Pub Date : 2021-04-21 , DOI: 10.1016/j.cretres.2021.104852
Leonardo S. Filippi , Ruben D. Juarez Valieri , Francisco Barrios

The holotype of the titanosaur sauropod Rinconsaurus caudamirus, from the Bajo de la Carpa Formation (Santonian, Upper Cretaceous, Neuquén Group), is based on an articulated series of 13 anterior-middle to middle posterior caudal vertebrae and two illia, in addition to cranial, axial and appendicular elements corresponding to several individuals. One of the skull elements originally identified as a prefrontal (MAU-Pv-CRS-102), is reinterpreted here as a mesoeucrocodylian right ilium, likely belonging to Pehuenchesuchus enderi, a crocodyliform found in the same quarry. Therefore, this element is excluded from the Rinconsaurus type materials, adding a new element to Pehuenchesuchus and increasing the knowledge of its anatomy.



中文翻译:

Rinconsaurus caudamirus (Sauropoda, Titanosauria)的前额叶为鳄鱼状髂骨

来自 Bajo de la Carpa 组(桑顿阶、上白垩纪、内乌肯群)的泰坦龙蜥脚类恐龙Rinconsaurus caudamirus 的正模基于 13 个前-中到中后尾椎骨和两个髂骨的铰接系列,以及颅骨,轴向和附属元素对应于几个个体。最初被确定为前额叶 (MAU-Pv-CRS-102) 的头骨元素之一,在这里被重新解释为右髂胫骨,可能属于Pehuenchesuchus enderi,一种在同一采石场发现的鳄鱼。因此,该元素被排除在Rinconsaurus类型材料之外,为Pehuenchesuchus添加了一个新元素并增加了对其解剖学的了解。

更新日期:2021-05-31
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