A distinguishing feature of Pongo upper molars and its implications for the taxonomic identification of isolated hominid teeth from the Pleistocene of Asia | |
Ortiz, Alejandra2,3; Bailey, Shara E.1,2; Delgado, Miguel4,5,6,7,8; Zanolli, Clement9; Demeter, Fabrice10,11; Bacon, Anne-Marie12; Nguyen, Thi M. H.13; Nguyen, Anh T.13; Zhang, Yingqi14,15; Harrison, Terry2 | |
刊名 | AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY |
2019-12-01 | |
卷号 | 170期号:4页码:595-612 |
关键词 | enamel-dentine junction hominids mesial fovea protoconule taxonomy |
ISSN号 | 0002-9483 |
DOI | 10.1002/ajpa.23928 |
通讯作者 | Ortiz, Alejandra(ao706@nyu.edu) |
英文摘要 | Objectives The taxonomic status of isolated hominoid teeth from the Asian Pleistocene has long been controversial due to difficulties distinguishing between pongine and hominin molars given their high degree of morphometrical variation and overlap. Here, we combine nonmetric and geometric morphometric data to document a dental pattern that appears to be taxonomically diagnostic among Pongo. We focus on the protoconule, a cuspule of well-documented evolutionary history, as well as on shape differences of the mesial fovea of the upper molars. Materials and methods We examined 469 upper molars of eight hominid genera (Australopithecus, Paranthropus, Homo, Meganthropus, Sivapithecus, Pan, Gorilla, and Pongo), including representatives of Homo erectus and extinct and recent Pongo. Analyses were conducted at the enamel-dentine junction to overcome the limitations introduced by dental wear. Results We found that a moderate or large protoconule is present in similar to 80% of Pleistocene and extant Pongo. Conversely, a moderate to pronounced protoconule in hominins, Meganthropus, and African great apes occurs in low frequencies (similar to 0-20%). Canonical variate analyses for the mesial fovea show that Pleistocene and extant Pongo cluster together and are clearly differentiated from all other groups, except for Sivapithecus. Discussion This study suggests that the protoconule and the shape of the mesial fovea in upper molars are useful features for the taxonomic identification of isolated hominid teeth. By identifying these new features, our results can contribute to the better understanding of hominoid evolutionary history and biogeography during the Asian Pleistocene. However, we emphasize that the reported features should be used in combination with other diagnostic variables for the most accurate taxonomic assessments. |
资助项目 | Chinese Academy of Sciences[XDB26000000] ; Leakey Foundation ; Max Planck Society ; National Science Foundation[1341148] ; New York University ; PICS-CNRS 2011-2013[5712] ; Wenner-Gren Foundation |
WOS关键词 | ENAMEL-DENTIN JUNCTION ; MIDDLE MIOCENE ; HOMO-ERECTUS ; PHYLOGENETIC-RELATIONSHIPS ; GIGANTOPITHECUS-BLACKI ; CATARRHINE PRIMATES ; FOSSIL ORANGUTAN ; NORTHERN VIETNAM ; TOOTH MORPHOLOGY ; 1ST DISCOVERY |
WOS研究方向 | Anthropology ; Evolutionary Biology |
语种 | 英语 |
出版者 | WILEY |
WOS记录号 | WOS:000492436000001 |
资助机构 | Chinese Academy of Sciences ; Leakey Foundation ; Max Planck Society ; National Science Foundation ; New York University ; PICS-CNRS 2011-2013 ; Wenner-Gren Foundation |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.205/handle/311034/16989] |
专题 | 古脊椎动物与古人类研究所_图书馆1 |
通讯作者 | Ortiz, Alejandra |
作者单位 | 1.Max Planck Inst Evolutionary Anthropol, Dept Human Evolut, Leipzig, Germany 2.NYU, Dept Anthropol, New York, NY 10003 USA 3.Arizona State Univ, Inst Human Origins, Sch Human Evolut & Social Change, Tempe, AZ USA 4.Univ Nacl La Plata, Fac Ciencias Nat & Museo, Div Antropol, La Plata, Buenos Aires, Argentina 5.Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina 6.Fudan Univ, Minist Educ, Key Lab Contemporary Anthropol, Shanghai, Peoples R China 7.Fudan Univ, Sch Life Sci, Collaborat Innovat Ctr Genet & Dev, Shanghai, Peoples R China 8.Fudan Univ, Human Phenome Inst, Shanghai, Peoples R China 9.Univ Bordeaux, CNRS, Lab PACEA, UMR 5199, Bordeaux, France 10.Musee Homme Paris, Dept Homme & Environm, UMR7206, Paris, France |
推荐引用方式 GB/T 7714 | Ortiz, Alejandra,Bailey, Shara E.,Delgado, Miguel,et al. A distinguishing feature of Pongo upper molars and its implications for the taxonomic identification of isolated hominid teeth from the Pleistocene of Asia[J]. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY,2019,170(4):595-612. |
APA | Ortiz, Alejandra.,Bailey, Shara E..,Delgado, Miguel.,Zanolli, Clement.,Demeter, Fabrice.,...&Skinner, Matthew M..(2019).A distinguishing feature of Pongo upper molars and its implications for the taxonomic identification of isolated hominid teeth from the Pleistocene of Asia.AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY,170(4),595-612. |
MLA | Ortiz, Alejandra,et al."A distinguishing feature of Pongo upper molars and its implications for the taxonomic identification of isolated hominid teeth from the Pleistocene of Asia".AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 170.4(2019):595-612. |
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