NIGPAS OpenIR
Premolar enamel thickness and distribution of a Miocene hominid Lufengpithecus hudienensis compared with Pleistocene and extant hominids
Pan, Lei1,2; Ji, Xueping3,4; Liao, Wei5,6; Wang, Wei7; Liu, Jianhui3; Xing, Song1,8,9
2021-08-01
Source PublicationJOURNAL OF HUMAN EVOLUTION
ISSN0047-2484
Volume157Pages:9
Abstract

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.

KeywordHominoid Teeth Micro-computed tomography Colormap
DOI10.1016/j.jhevol.2021.103030
Indexed BySCI
Language英语
WOS KeywordDISTRIBUTION PATTERNS ; YUNNAN PROVINCE ; BRIEF COMMUNICATION ; SPECIES NUMBER ; LOWER MOLARS ; YUANMOU ; CROWN ; MORPHOLOGY ; AUSTRALOPITHECUS ; MICROSTRUCTURE
Funding ProjectStrategic 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 Research AreaAnthropology ; Evolutionary Biology
WOS SubjectAnthropology ; Evolutionary Biology
WOS IDWOS:000677607200007
Funding OrganizationStrategic 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)
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/38436
Collection中国科学院南京地质古生物研究所
Corresponding AuthorJi, Xueping
Affiliation1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
2.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China
3.Yunnan Inst Cultural Rel & Archaeol, Dept Paleoanthropol, Kunming, Yunnan, Peoples R China
4.Yunnan Univ, Sch Geosci, Kunming, Yunnan, Peoples R China
5.Anthropol Museum Guangxi, Nanning, Peoples R China
6.Univ Geosci, Sch Earth Sci, Wuhan, Peoples R China
7.Shandong Univ, Inst Cultural Heritage, Qingdao, Peoples R China
8.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
9.Ctr Nacl Invest Evoluc Humana, Paseo Sierra de Atapuerca S-N, Burgos, Spain
Recommended Citation
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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