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''Ilokelesia'' is an abelisaur found in 1991,〔Coria, R.A.; Salgado, L. & Calvo, J.O. (1991) "Primeros restos de dinosaurios Theropoda del Miembro Huincul, Formación Río Limay (Cretácico Tardío Presenoniano), Neuquén, Argentina." ''Ameghiniana'', 28: 405-406.〕 preserved in the layers of the earliest Late Cretaceous〔Coria, R.A.; Currie, P.J. & Carabajal, A.P. (2006). "A new abelisauroid theropod from northwestern Patagonia" ''Canadian Journal of Earth Sciences 43'': 1283—1289. doi:101139/E06-25〕 of the Río Limay Formation, Neuquén Group, located near Plaza Huincul, Neuquén Province, Argentina. The specimen, consisting of very fragmentary elements of the skull and the axial and appendicular skeleton, was described by Coria et al. in late 1998. The generic name's etymology is derived from the Mapuche language, ''ilo'' meaning "flesh" and ''kelesio'', "lizard"; while the specific descriptor reflects the name of the locality where the fossil was found, Aguada Grande. ''Ilokelesia'', a medium-sized theropod, is characterized by features of the skull, namely of the quadrate and postorbital bones. The vertebral series also has distinctive characters setting it apart from other abelisaurs, such as reduced processes on the cervical vertebrae and dorsal vertebrae lacking pleurocoels. ''I. aguadagrandensis'' was considered the most basal abelisaur described at the time, sharing characters, such as an expansion of the postorbital bone above the orbit and a flange of the same bone inside the orbit, with Abelisauridae and Noasauridae; but it was considered to retain primitive features for Abelisauria, such as an opening in the quadrate bone and a T-shaped postorbital. A subsequent analysis has placed it within Abelisauridae, as a brachyrostran carnotaurine. ==See also== * Timeline of ceratosaur research 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ilokelesia」の詳細全文を読む スポンサード リンク
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