A new large panchelid turtle (Pleurodira) from the Loncoche Formation (upper Campanian-lower Maastrichtian) of the Mendoza Province (Argentina): Morphological, osteohistological studies, and a preliminary phylogenetic analysis

被引：19
作者：
de la Fuente, Marcelo S. [1 ,2 ]
Maniel, Ignacio [1 ,2 ]
Marcos Jannello, Juan [1 ,2 ]
Sterli, Juliana [2 ,3 ]
Gonzalez Riga, Bernardo [2 ,4 ]
Novas, Fernando [2 ,5 ]
机构：
[1] Museo Hist Nat San Rafael, Grp Vinculado IANIGLA, Ave Ballofet S-N,Parque Mariano Moreno, RA-5600 San Rafael, Provincia De Me, Argentina
[2] Natl Sci & Tech Res Council CONICET, Buenos Aires, DF, Argentina
[3] Museo Paleontol Egidio Feruglio, Ave Fontana 140, RA-9100 Trelew, Provincia De Ch, Argentina
[4] Univ Nacl Cuyo, Lab Dinosaurios, Fac Ciencias Exactas & Nat, Padre Jorge Contreras 1300, RA-5500 Mendoza, Provincia De Me, Argentina
[5] Museo Argentino Ciencias Nat Bernardino Rivadavia, Lab Anat Comparada & Evolut Vertebrados, Angel Gallardo 470,C1405DJR, Buenos Aires, DF, Argentina
来源：
CRETACEOUS RESEARCH | 2017年 / 69卷
关键词：
Pleurodira; Ranquil-Co locality; Mendoza; Upper Cretaceous; Gondwana; NECKED CHELID TURTLES; BONE MICROSTRUCTURE; NEUQUEN BASIN; FRESH-WATER; PATAGONIA; VERTEBRATES; TESTUDINES; EVOLUTION; SKELETON; OLDEST;
D O I：
10.1016/j.cretres.2016.09.007
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A new genus and species of panchelid turtle (Mendozachelys wichmanni gen. et sp. nov.) from the upper Campanian-lower Maastrichtian Loncoche Formation (southern Mendoza Province, Argentina) is described here. This species is represented by only one complete and articulated large specimen (carapace length estimated in 950 mm) that was recovered from tidal flat deposits. A detailed morphological and osteohistological description is made, recognizing autapomorphic characters that allow differentiating this taxon from the rest of extant and extinct panchelids. Osteohistological characters suggest an aquatic to semi-aquatic life style for Mendozachelys wichmanni gen. et sp. nov. Phylogenetic analysis based on morphological data suggested that this new taxon is nested within crown Chelidae. Both phylogenetic signals (morphological and molecular) about the assessment of long-necked chelids monophyly or polyphyly are discussed. (C) 2016 Elsevier Ltd. All rights reserved.
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页码：147 / 168
页数：22
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