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A New Megaraptoran Dinosaur (Dinosauria, Theropoda, Megaraptoridae) from the Late Cretaceous of Patagonia.
PLoS One. 2016; 11(7):e0157973.Plos

Abstract

A skeleton discovered in the Upper Cretaceous Sierra Barrosa Formation (Turonian-Coniacian) of Neuquén Province, Argentina represents a new species of theropod dinosaur related to the long snouted, highly pneumatized Megaraptoridae. The holotype specimen of Murusraptor barrosaensis n.gen et n.sp. (MCF-PVPH-411) includes much of the skull, axial skeleton, pelvis and tibia. Murusraptor is unique in having several diagnostic features that include anterodorsal process of lacrimal longer than height of preorbital process, and a thick, shelf-like thickening on the lateral surface of surangular ventral to the groove between the anterior surangular foramen and the insert for the uppermost intramandibular process of the dentary. Other characteristic features of Murusraptor barrosaensis n.gen. et n. sp.include a large mandibular fenestra, distal ends of caudal neural spines laterally thickened into lateral knob-like processes, short ischia distally flattened and slightly expanded dorsoventrally. Murusraptor belongs to a Patagonian radiation of megaraptorids together with Aerosteon, Megaraptor and Orkoraptor. In spite being immature, it is a larger but more gracile animal than existing specimens of Megaraptor, and is comparable in size with Aerosteon and Orkoraptor. The controversial phylogeny of the Megaraptoridae as members of the Allosauroidea or a clade of Coelurosauria is considered analyzing two alternative data sets.

Authors+Show Affiliations

Consejo Nacional de Investigaciones Científicas y Técnicas, Gral. Roca, Argentina. Universidad Nacional de Río Negro, Gral. Roca, Argentina. Secretaria de Estado de Cultura de Neuquén, Museo Carmen Funes, Plaza Huincul, Neuquén, Argentina.University of Alberta, Edmonton, Alberta, Canada.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27439002

Citation

Coria, Rodolfo A., and Philip J. Currie. "A New Megaraptoran Dinosaur (Dinosauria, Theropoda, Megaraptoridae) From the Late Cretaceous of Patagonia." PloS One, vol. 11, no. 7, 2016, pp. e0157973.
Coria RA, Currie PJ. A New Megaraptoran Dinosaur (Dinosauria, Theropoda, Megaraptoridae) from the Late Cretaceous of Patagonia. PLoS One. 2016;11(7):e0157973.
Coria, R. A., & Currie, P. J. (2016). A New Megaraptoran Dinosaur (Dinosauria, Theropoda, Megaraptoridae) from the Late Cretaceous of Patagonia. PloS One, 11(7), e0157973. https://doi.org/10.1371/journal.pone.0157973
Coria RA, Currie PJ. A New Megaraptoran Dinosaur (Dinosauria, Theropoda, Megaraptoridae) From the Late Cretaceous of Patagonia. PLoS One. 2016;11(7):e0157973. PubMed PMID: 27439002.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A New Megaraptoran Dinosaur (Dinosauria, Theropoda, Megaraptoridae) from the Late Cretaceous of Patagonia. AU - Coria,Rodolfo A, AU - Currie,Philip J, Y1 - 2016/07/20/ PY - 2016/01/04/received PY - 2016/06/08/accepted PY - 2016/7/21/entrez PY - 2016/7/22/pubmed PY - 2017/7/22/medline SP - e0157973 EP - e0157973 JF - PloS one JO - PLoS One VL - 11 IS - 7 N2 - A skeleton discovered in the Upper Cretaceous Sierra Barrosa Formation (Turonian-Coniacian) of Neuquén Province, Argentina represents a new species of theropod dinosaur related to the long snouted, highly pneumatized Megaraptoridae. The holotype specimen of Murusraptor barrosaensis n.gen et n.sp. (MCF-PVPH-411) includes much of the skull, axial skeleton, pelvis and tibia. Murusraptor is unique in having several diagnostic features that include anterodorsal process of lacrimal longer than height of preorbital process, and a thick, shelf-like thickening on the lateral surface of surangular ventral to the groove between the anterior surangular foramen and the insert for the uppermost intramandibular process of the dentary. Other characteristic features of Murusraptor barrosaensis n.gen. et n. sp.include a large mandibular fenestra, distal ends of caudal neural spines laterally thickened into lateral knob-like processes, short ischia distally flattened and slightly expanded dorsoventrally. Murusraptor belongs to a Patagonian radiation of megaraptorids together with Aerosteon, Megaraptor and Orkoraptor. In spite being immature, it is a larger but more gracile animal than existing specimens of Megaraptor, and is comparable in size with Aerosteon and Orkoraptor. The controversial phylogeny of the Megaraptoridae as members of the Allosauroidea or a clade of Coelurosauria is considered analyzing two alternative data sets. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/27439002/A_New_Megaraptoran_Dinosaur__Dinosauria_Theropoda_Megaraptoridae__from_the_Late_Cretaceous_of_Patagonia_ L2 - https://dx.plos.org/10.1371/journal.pone.0157973 DB - PRIME DP - Unbound Medicine ER -