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Prepotherium
''Prepotherium'' is an extinct genus of Prepotheriina ground sloths that lived during the Miocene period. Fossils of them have been found in Argentina.
''Prepotherium'' differed from ''Megatherium'' by being smaller and having a less exaggeratedly convex inferior border of the lower jaw.〔() A History of Land Mammals in the Western Hemisphere, by William Berryman Scott〕
An additional species from Venezuela, ''P. venezuelanum'', was named by R. Collins in 1935.〔Collins, R.L., 1934. Venezuelan Tertiary Mammals. Johns Hopkins University ''Studies in Geology'' (11), 23-244.〕 from fossils found in the Portuguesa state and additional remains from the Acre state in Brazil.〔M. A. Cozzuol. 2006. The Acre vertebrate fauna: Age, diversity, and geography. ''Journal of South American Earth Sciences'' 21:185-203〕 However, this species was later reclassified in their own genus, ''Pseudoprepotherium'', as a basal member of another family of ground sloths, the Mylodontidae.〔Hirschfeld SE. 1985. Ground sloths from the Friasian La Venta Fauna, with additions to the pre-Friasian Coyaima Fauna of Colombia, South America. ''University of California Publications, Geological Sciences'' 128: 1–91.〕〔Marcelo R. Sánchez-Villagra,Orangel A. Aguilera,Alfredo A. Carlini. The fossil vertebrate record of Venezuela. In Marcelo R. Sánchez-Villagra, Orangel A. Aguilera, and Alfredo A. Carlini, ''Urumaco and Venezuelan Paleontology The Fossil Record of the Northern Neotropics''. 2010 Publisher: Indiana University Press, p. 26〕
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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