A new Eocene Toxodontia (Mammalia, Notoungulata) from northwestern Argentina
作者： Virginia Deraco , Daniel A. GarcÍa-López
DOI: 10.1080/02724634.2015.1037884
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摘要: ABSTRACTA new species of Toxodontia (Mammalia, Notoungulata), Pampahippus secundus sp. nov., is described based on remains recovered from outcrops the Lumbrera Formation exposed in Salta Province, northwest Argentina. The material studied consists mandibular, maxillary, and premaxillary fragments with complete incomplete teeth representing at least three individuals. It differs type P. arenalesi by its smaller size presence several dental features: I2 than I1 I3, paraconule absent P3, upper molars wider long subquadrangular, a single crista projecting ectoloph, strong mesiolingual cingulum surrounding protocone M1, conspicuous metacone fold ectoloph M1 M2, absence labial cingulids lower molars. In order to determine phylogenetic position as well different Paleogene notoungulates northwestern Argentina, we performed cladistic analysis. This analysis supports ...
sci-hub.se 参考文章(38)
Mariano Bond, Maria G. Vucetich, LOS PRIMEROS ISOTEMNIDAE (MAMMALIA, NOTOUNGULATA) REGISTRADOS EN LA FORMACION LUMBRERA (GRUPO SALTA), DEL NOROESTE ARGENTINO Ameghiniana. ,vol. 19, pp. 7- 18 ,(1982)
Darin A Croft, Mariano joint author Depto. Científico de Paleontología de Vertebrados Bond (Museo de La Plata, La Plata, Argentina), J John, None, Large Archaeohyracids (Typotheria, Notoungulata) from Central Chile and Patagonia, Including a Revision of Archaeotypotherium ,(2003)
Mariano Bond, Guillermo López, LOS MAMÍFEROS DE LA FORMACIÓN CASA GRANDE (EOCENO) DE LA PROVINCIA DE JUJUY, ARGENTINA Ameghiniana. ,vol. 32, pp. 301- 309 ,(1995)
Mariano Bond, Guillermo López, El primer Notohippidae (Mammalia, Notoungulata) de la formacion lumbrera (Grupo Salta) del noroeste Argentino. Consideraciones sobre la sistematica de la familia Notohippidae Ameghiniana. ,vol. 30, pp. 59- 68 ,(1993)
del Papa, del Papa, Estratigrafia y paleoambientes de la Formación Lumbrera, Grupo Salta, noroeste argentino Revista de la Asociación Geológica Argentina. ,vol. 61, pp. 313- 327 ,(2006)
Scarritt Patagonian Expedition, George Gaylord Simpson, Richard. Cifelli, Biostratigraphy of the Casamayoran, Early Eocene of Patagonia. American Museum novitates ; no. 2820 New York, N.Y. : American Museum of Natural History. ,(1985)
Malcolm C. McKenna, Toward a Phylogenetic Classification of the Mammalia Phylogeny of the Primates. pp. 21- 46 ,(1975) , 10.1007/978-1-4684-2166-8_2
Michael J. Novacek, Mark. Norell, R. Charrier, M. C. McKenna, John J. Flynn, Carl Celso. Swisher, André R. Wyss, Paleogene mammals from the Andes of central Chile : a preliminary taxonomic, biostratigraphic, and geochronologic assessment. American Museum novitates ; no. 3098 New York, N.Y. : American Museum of Natural History. ,(1994)
GUILLAUME BILLET, CHRISTIAN DE MUIZON, BERNARDINO MAMANI QUISPE, Late Oligocene mesotheriids (Mammalia, Notoungulata) from Salla and Lacayani (Bolivia): implications for basal mesotheriid phylogeny and distribution Zoological Journal of the Linnean Society. ,vol. 152, pp. 153- 200 ,(2008) , 10.1111/J.1096-3642.2007.00388.X
George Gaylord Simpson, The beginning of the age of mammals in South America. Part 2, Systematics : Notoungulata, concluded (Typotheria, Hegetotheria, Toxodonta, Notoungulata incertae sedis), Astrapotheria, Trigonostylopoidea, Pyrotheria, Xenungulata, Mammalia incertae sedis. Bulletin of the AMNH ; v. 137 New York : [American Museum of Natural History]. ,(1967)