An anilioid snake from the Upper Cretaceous of northern Patagonia

We report the first record of anilioids from southern South America, a region where they do not live today. The fossils come from the Allen Formation (Late Campanian-Early Maastrichtian) at Bajo Trapalcó and Bajo de Santa Rosa localities, Río Negro province, Argentina. The remains consist of several...

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Autor principal: Gómez, R.O
Otros Autores: Báez, A.M, Rougier, G.W
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Publicado: 2008
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100 1 |a Gómez, R.O. 
245 1 3 |a An anilioid snake from the Upper Cretaceous of northern Patagonia 
260 |c 2008 
270 1 0 |m Gómez, R.O.; Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina; email: raulgomez@gl.fcen.uba.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a We report the first record of anilioids from southern South America, a region where they do not live today. The fossils come from the Allen Formation (Late Campanian-Early Maastrichtian) at Bajo Trapalcó and Bajo de Santa Rosa localities, Río Negro province, Argentina. The remains consist of several vertebrae, most of which belong to the mid-posterior precloacal region of the column. Comparisons to other extant and extinct anilioid taxa indicate that these remains represent a new taxon, Australophis anilioides gen. et sp. nov. Australophis is morphologically closer to Palaeocene Hoffstetterella from Brazil and extant South American Anilius than to any other snake. These taxa might be closely related, in which case they would represent a lineage distinct from that including Cylindrophis and uropeltids. The two lineages must have diverged by the Late Cretaceous. © 2008 Elsevier Ltd. All rights reserved.  |l eng 
536 |a Detalles de la financiación: Universidad de Buenos Aires 
536 |a Detalles de la financiación: Associação Médica Brasileira 
536 |a Detalles de la financiación: Secretaría de Ciencia y Técnica, Universidad de Buenos Aires, X90 
536 |a Detalles de la financiación: We are grateful to the staff of the Museo Municipal de Lamarque (Río Negro, Argentina), particularly Mr. Daniel Cabaza, for the loan of the fossil specimens and technical assistance during the 2004 field season. We also thank the staff of the Museo Paleontológico “Egidio Feruglio” (Chubut, Argentina) and other members of the 2004 expedition for logistical support. Andrea Concheyro (Universidad de Buenos Aires, Argentina) and Jean-Claude Rage (Muséum national d'Histoire naturelle, Paris, France) provided helpful information. Collection and field work was supported by the project Paleontological exploration of Patagonia funded by the Lampadian Foundation; this work was also funded by the University of Buenos Aires (UBACyT Grant X90, to AMB). 
593 |a Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina 
593 |a Department of Anatomical Sciences and Neurobiology, University of Louisville, Louisville, KY, United States 
690 1 0 |a ANILIOIDEA 
690 1 0 |a AUSTRALOPHIS 
690 1 0 |a CRETACEOUS 
690 1 0 |a PATAGONIA 
690 1 0 |a SERPENTES 
690 1 0 |a CAMPANIAN 
690 1 0 |a CRETACEOUS 
690 1 0 |a EXTINCTION 
690 1 0 |a FOSSIL 
690 1 0 |a MAASTRICHTIAN 
690 1 0 |a MORPHOLOGY 
690 1 0 |a NEW TAXON 
690 1 0 |a SNAKE 
690 1 0 |a PATAGONIA 
690 1 0 |a ANILIUS 
690 1 0 |a CYLINDROPHIS 
690 1 0 |a SERPENTES 
690 1 0 |a UROPELTIDAE 
651 4 |a ARGENTINA 
651 4 |a RIO NEGRO [ARGENTINA] 
651 4 |a SOUTH AMERICA 
700 1 |a Báez, A.M. 
700 1 |a Rougier, G.W. 
773 0 |d 2008  |g v. 29  |h pp. 481-488  |k n. 3  |p Cretaceous Res.  |x 01956671  |w (AR-BaUEN)CENRE-4335  |t Cretaceous Research 
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856 4 0 |u https://hdl.handle.net/20.500.12110/paper_01956671_v29_n3_p481_Gomez  |y Handle 
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