Premolar enamel thickness and distribution of a Miocene hominid Lufengpithecus hudienensis compared with Pleistocene and extant hominids | |
Pan, Lei1,2; Ji, Xueping7,8; Liao, Wei5,6; Wang, Wei4; Liu, Jianhui8; Xing, Song2,3,9 | |
刊名 | JOURNAL OF HUMAN EVOLUTION |
2021-08-01 | |
卷号 | 157页码:9 |
关键词 | Hominoid Teeth Micro-computed tomography Colormap |
ISSN号 | 0047-2484 |
DOI | 10.1016/j.jhevol.2021.103030 |
英文摘要 | Lufengpithecus hudienensis is a Late-Miocene hominid from the Yuanmou basin of southwestern China. Previous studies link Lufengpithecus to either the Sivapithecus-orangutan clade or a derived branch from the basal stem of the Hominidae. Despite a rich fossil assemblage, the taxonomy of L. hudienensis and its phylogenetic relationship with other hominids is still unclear. Enamel thickness in fossil and modern hominids can provide insights into taxonomy, phylogeny, and dietary reconstructions. In this study, 24 upper and lower L. hudienensis premolars were imaged using high-resolution microcomputed tomography. Three-dimensional average enamel thickness and relative enamel thickness (RET) indices, as well as whole-crown enamel distribution patterns were recorded for the L. hudienensis specimens and compared with a total of 113 specimens of fossil and extant apes and recent modern humans (RMH): fossil Pongo (n = 36), Gigantopithecus blacki (n = 21), Pan troglodytes (n = 11), Gorilla gorilla (n = 7), and RMH (n = 38). RET of the premolars of L. hudienensis was found to be similar to that of fossil Pongo, P. troglodytes, and G. gorilla, but less than Gi. blacki and RMH values. The distribution of enamel thickness shows a taxon-specific pattern for L. hudienensis, generally characterized by thicker enamel on the lateral wall than on the cusp apex, on the lingual cusp of the upper and buccal cusp of the lower premolars, with some differences with respect to fossil Pongo, Gi. blacki, P. troglodytes, and G. gorilla patterns. Additional characterizations of enamel thickness distribution patterns of the molars and other dental endostructural morphologies are needed to further explore the phylogenetic relationships of L. hudienensis with other hominids. (C) 2021 Elsevier Ltd. All rights reserved. |
资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41702026] ; National Natural Science Foundation of China[41872030] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[173119] |
WOS关键词 | DISTRIBUTION PATTERNS ; YUNNAN PROVINCE ; BRIEF COMMUNICATION ; SPECIES NUMBER ; LOWER MOLARS ; YUANMOU ; CROWN ; MORPHOLOGY ; AUSTRALOPITHECUS ; MICROSTRUCTURE |
WOS研究方向 | Anthropology ; Evolutionary Biology |
语种 | 英语 |
出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000677607200007 |
资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/38435] |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Ji, Xueping |
作者单位 | 1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China 2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 3.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 4.Shandong Univ, Inst Cultural Heritage, Qingdao, Peoples R China 5.Univ Geosci, Sch Earth Sci, Wuhan, Peoples R China 6.Anthropol Museum Guangxi, Nanning, Peoples R China 7.Yunnan Univ, Sch Geosci, Kunming, Yunnan, Peoples R China 8.Yunnan Inst Cultural Rel & Archaeol, Dept Paleoanthropol, Kunming, Yunnan, Peoples R China 9.Ctr Nacl Invest Evoluc Humana, Paseo Sierra de Atapuerca S-N, Burgos, Spain |
推荐引用方式 GB/T 7714 | Pan, Lei,Ji, Xueping,Liao, Wei,et al. Premolar enamel thickness and distribution of a Miocene hominid Lufengpithecus hudienensis compared with Pleistocene and extant hominids[J]. JOURNAL OF HUMAN EVOLUTION,2021,157:9. |
APA | Pan, Lei,Ji, Xueping,Liao, Wei,Wang, Wei,Liu, Jianhui,&Xing, Song.(2021).Premolar enamel thickness and distribution of a Miocene hominid Lufengpithecus hudienensis compared with Pleistocene and extant hominids.JOURNAL OF HUMAN EVOLUTION,157,9. |
MLA | Pan, Lei,et al."Premolar enamel thickness and distribution of a Miocene hominid Lufengpithecus hudienensis compared with Pleistocene and extant hominids".JOURNAL OF HUMAN EVOLUTION 157(2021):9. |
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