Morphometric analysis of hominoid lower molars from Yuanmou of Yunnan Province, China |
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Authors: | W Liu L J Hlusko L Zheng |
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Institution: | (1) Institute of Vertebrate Paleontology and Paleoanthropology, The Chinese Academy of Sciences, 100044 Beijing, China;(2) Department of Anthropology, The Pennsylvania State University, University Park, 16802, Pennsylvania, U. S. A.;(3) Yunnan Provincial Institute of Archaeology, 650118 Kunming, China |
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Abstract: | Shape analyses of cross-sectional mandibular molar morphology, using Euclidean Distance Matrix Analysis, were performed on
79 late Miocene hominoid lower molars from Yuanmou of Yunnan Province, China. These molars were compared to samples of chimpanzee,
gorilla, orangutan,Lufengpithecus lufengensis, Sivapithecus, Australopithecus afarensis, and human mandibular molars. Our results indicate that the cross-sectional shape of Yuanmou hominoid lower molars is more
similar to the great apes that to humans. There are few differences between the Yuanmou,L. lufengensis, andSivapithecus molars in cross-sectional morphology, demonstrating strong affinities between these three late Miocene hominoids. All three
of the fossil samples show strong similarities to orangutans. From this, we conclude that these late Miocene hominoids are
more closely related to orangutants than to either the African great apes or humans. |
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Keywords: | Euclidean Distance Matrix Analysis Hominoids Miocene Lufengpithecus lufengensis |
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