| 词条 | Ilokelesia |
| 释义 |
| fossil_range = Cenomanian ~{{fossilrange|95|earliest=99.6|latest=93.5}} | image = Ilokelesia.jpg | image_alt = Illustration | image_caption = Life restoration | genus = Ilokelesia | species = aguadagrandensis | parent_authority = Coria & Salgado, 1998 | authority = Coria & Salgado, 1998 }}Ilokelesia is an abelisaur found in 1991,[1] preserved in the layers of the earliest Late Cretaceous[2] of the Huincul 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 Rodolfo Coria and Leonardo Salgado in late 1998.[3] EtymologyThe 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.[3] DescriptionIlokelesia, a medium-sized theropod measuring {{convert|5.3|m}} in length,[4] 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.[3]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.[3] A subsequent analysis has placed it within Abelisauridae, as a brachyrostran carnotaurine.[5]See also{{Portal|Dinosaurs|Cretaceous|Prehistory of South America}}
References1. ^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. {{Ceratosauria}}{{Taxonbar|from=Q135101}}2. ^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 3. ^1 2 3 {{Cite journal|last=Coria|first=Rodolfo A.|last2=Salgado|first2=Leonardo|date=December 1998|title=A Basal Abelisauria Novas, 1992 (Theropoda-Ceratosauria) from the Cretaceous of Patagonia, Argentina|url=http://www.arca.museus.ul.pt/ArcaSite/obj/gaia/MNHNL-0000773-MG-DOC-web.PDF|journal=Gaia|volume=15|pages=89–102|via=}} 4. ^{{cite journal |last1 = Grillo | first1 = O. N. | last2 = Delcourt | first2 = R. |date = 2016 | title = Allometry and body length of abelisauroid theropods: Pycnonemosaurus nevesi is the new king | journal = Cretaceous Research | volume = 69 | pages = 71–89 | doi = 10.1016/j.cretres.2016.09.001}} 5. ^{{Cite journal |author=Canale, J.I., Scanferla, C.A., Agnolin, F., and Novas, F.E. |year=2009 |title=New carnivorous dinosaur from the Late Cretaceous of NW Patagonia and the evolution of abelisaurid theropods |journal=Naturwissenschaften |pmid=19057888 |volume=96 |issue=3 |pages=409–414 |doi=10.1007/s00114-008-0487-4|bibcode=2009NW.....96..409C }} 9 : Brachyrostrans|Late Cretaceous dinosaurs of South America|Cenomanian life|Cretaceous Argentina|Fossils of Argentina|Huincul Formation|Fossil taxa described in 1998|Taxa named by Rodolfo Coria|Mapudungun |
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