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Gurian K, Buzaribah K, O'Hara MC, Khalaf K, Waterhouse PJ, Dirks W. Relating metric crown dimensions to underlying internal daily secretion rates in antimeric premolars. Arch Oral Biol 2024; 157:105852. [PMID: 37995633 DOI: 10.1016/j.archoralbio.2023.105852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/23/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES The underlying cause for metric differences in antimeric tooth pairs is an important question for understanding dental variation. We hypothesize that localized variation in crown dimensions will be reflected in localized variation in daily enamel secretion rate. DESIGN Casts of pairs of human premolars from a tissue bank were 3D scanned using an optical scanning system (n = 32). Histological slides were created, and daily secretion rates (DSRs) were recorded in two areas of enamel that corresponded to scanner measurements. Antimeres were compared for both metric measurements and DSRs. Outliers for scanner measures were compared to significant differences in DSRs measurements in right and left teeth in corresponding areas. RESULTS Thirteen of the 16 individuals differed significantly in antimeric metric measurements, but only ten of those also differed in the underlying DSR. Fifteen of the 16 total individuals differed significantly in at least one DSR area. DISCUSSION While some individuals were outliers for metric measurements and had multiple areas of DSR differences, the majority of individuals had antimeric DSR differences regardless of metric differences. While there was no conclusive correlation between 3D metric analysis and underlying DSR differences, the most important result of this study is that DSR differences between antimeres are common.
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Affiliation(s)
- Kaita Gurian
- Department of Anthropology, Ohio State University, Columbus, United States.
| | - Khadeejah Buzaribah
- Department of Oral Biology, Faculty of Dentistry, University of Benghazi, Benghazi, Libya
| | - Mackie C O'Hara
- School of Anthropology and Conservation, University of Kent, Canterbury, United Kingdom
| | - Khaled Khalaf
- Institute of Dentistry, University of Aberdeen, Aberdeen, United Kingdom
| | - Paula J Waterhouse
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, United Kingdom
| | - Wendy Dirks
- Posthumous, Department of Anthropology, Durham University, Durham, United Kingdom
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2
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Enamel growth rate variation of inner, mid, and outer enamel regions between select permanent tooth types across five temporally distinct British samples. Arch Oral Biol 2022; 137:105394. [DOI: 10.1016/j.archoralbio.2022.105394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 03/02/2022] [Accepted: 03/06/2022] [Indexed: 11/23/2022]
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3
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Modesto-Mata M, Dean MC, Lacruz RS, Bromage TG, García-Campos C, Martínez de Pinillos M, Martín-Francés L, Martinón-Torres M, Carbonell E, Arsuaga JL, Bermúdez de Castro JM. Short and long period growth markers of enamel formation distinguish European Pleistocene hominins. Sci Rep 2020; 10:4665. [PMID: 32170098 PMCID: PMC7069994 DOI: 10.1038/s41598-020-61659-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/29/2020] [Indexed: 11/23/2022] Open
Abstract
Characterizing dental development in fossil hominins is important for distinguishing between them and for establishing where and when the slow overall growth and development of modern humans appeared. Dental development of australopiths and early Homo was faster than modern humans. The Atapuerca fossils (Spain) fill a barely known gap in human evolution, spanning ~1.2 to ~0.4 million years (Ma), during which H. sapiens and Neandertal dental growth characteristics may have developed. We report here perikymata counts, perikymata distributions and periodicities of all teeth belonging to the TE9 level of Sima del Elefante, level TD6.2 of Gran Dolina (H. antecessor) and Sima de los Huesos. We found some components of dental growth in the Atapuerca fossils resembled more recent H. sapiens. Mosaic evolution of perikymata counts and distribution generate three distinct clusters: H. antecessor, Sima de los Huesos and H. sapiens.
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Affiliation(s)
- Mario Modesto-Mata
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002, Burgos, Spain. .,Department of Anthropology, University College London, London, WC1H 0BW, UK. .,Equipo Primeros Pobladores de Extremadura, Casa de Cultura Rodríguez Moñino, Cáceres, Spain.
| | - M Christopher Dean
- Centre for Human Evolution Research (CHER), Department of Earth Sciences, Natural History Museum, London, SW7 5BD, UK.,Department of Cell and Developmental Biology, University College London, Gower Street, London, WC1E 6BT, UK
| | - Rodrigo S Lacruz
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| | - Timothy G Bromage
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| | - Cecilia García-Campos
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002, Burgos, Spain.,Department of Anthropology, University College London, London, WC1H 0BW, UK
| | - Marina Martínez de Pinillos
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002, Burgos, Spain
| | - Laura Martín-Francés
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002, Burgos, Spain.,University of Bordeaux, CNRS, MCC, PACE, UMR 5199 F_33615, Pessac, Cedex, France
| | - María Martinón-Torres
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002, Burgos, Spain.,Department of Anthropology, University College London, London, WC1H 0BW, UK
| | - Eudald Carbonell
- Institut Català de Paleoecologia Humana i Evolució Social (IPHES), Zona Educacional 4, Campus Sescelades, Edifici W3, Universitat Rovira i Virgili, Tarragona, Spain.,Àrea de Prehistòria, Universitat Rovira i Virgili, Avinguda de Catalunya 35, 43002, Tarragona, Spain
| | - Juan Luis Arsuaga
- Centro mixto UCM-ISCIII de Evolución y Comportamiento humanos, Madrid, Spain.,Departamento de Geodinámica, Estratigrafía y Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Madrid, Spain
| | - José María Bermúdez de Castro
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002, Burgos, Spain.,Department of Anthropology, University College London, London, WC1H 0BW, UK
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4
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Garralda MD, Maureille B, Le Cabec A, Oxilia G, Benazzi S, Skinner MM, Hublin JJ, Vandermeersch B. The Neanderthal teeth from Marillac (Charente, Southwestern France): Morphology, comparisons and paleobiology. J Hum Evol 2019; 138:102683. [PMID: 31765984 DOI: 10.1016/j.jhevol.2019.102683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 09/12/2019] [Accepted: 09/16/2019] [Indexed: 11/30/2022]
Abstract
Few European sites have yielded human dental remains safely dated to the end of MIS 4/beginning of MIS 3. One of those sites is Marillac (Southwestern France), a collapsed karstic cave where archeological excavations (1967-1980) conducted by B. Vandermeersch unearthed numerous faunal and human remains, as well as a few Mousterian Quina tools. The Marillac sinkhole was occasionally used by humans to process the carcasses of different prey, but there is no evidence for a residential use of the site, nor have any hearths been found. Rare carnivore bones were also discovered, demonstrating that the sinkhole was seasonally used, not only by Neanderthals, but also by predators across several millennia. The lithostratigraphic units containing the human remains were dated to ∼60 kyr. The fossils consisted of numerous fragments of skulls and jaws, isolated teeth and several post-cranial bones, many of them with traces of perimortem manipulations. For those already published, their morphological characteristics and chronostratigraphic context allowed their attribution to Neanderthals. This paper analyzes sixteen unpublished human teeth (fourteen permanent and two deciduous) by investigating the external morphology and metrical variation with respect to other Neanderthal remains and a sample from modern populations. We also investigate their enamel thickness distribution in 2D and 3D, the enamel-dentine junction morphology (using geometric morphometrics) of one molar and two premolars, the roots and the possible expression of taurodontism, as well as pathologies and developmental defects. The anterior tooth use and paramasticatory activities are also discussed. Morphological and structural alterations were found on several teeth, and interpreted in light of human behavior (tooth-pick) and carnivores' actions (partial digestion). The data are interpreted in the context of the available information for the Eurasian Neanderthals.
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Affiliation(s)
- María Dolores Garralda
- Departamento de Biodiversidad, Ecología y Evolución, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, Ciudad Universitaria, 28040, Madrid, Spain.
| | - Bruno Maureille
- UMR5199 PACEA: de la préhistoire à l'actuel: culture, environnement et anthropologie, Université de Bordeaux, bât. B8. Allée Geoffroy Saint-Hilaire - CS 50023, 33615 Pessac, France
| | - Adeline Le Cabec
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig D, 04103, Germany
| | - Gregorio Oxilia
- Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121, Ravenna, Italy
| | - Stefano Benazzi
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig D, 04103, Germany; Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121, Ravenna, Italy
| | - Matthew M Skinner
- School of Anthropology and Conservation, University of Kent, Marlowe Building, Canterbury, CT2 7NR, UK; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig D, 04103, Germany
| | - Jean-Jacques Hublin
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig D, 04103, Germany
| | - Bernard Vandermeersch
- UMR5199 PACEA: de la préhistoire à l'actuel: culture, environnement et anthropologie, Université de Bordeaux, bât. B8. Allée Geoffroy Saint-Hilaire - CS 50023, 33615 Pessac, France
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5
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Modesto-Mata M, García-Campos C, Martín-Francés L, Martínez de Pinillos M, García-González R, Quintino Y, Canals A, Lozano M, Dean MC, Martinón-Torres M, Bermúdez de Castro JM. New methodology to reconstruct in 2-D the cuspal enamel of modern human lower molars. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 163:824-834. [DOI: 10.1002/ajpa.23243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 01/29/2017] [Accepted: 04/23/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Mario Modesto-Mata
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH); Burgos 09002 Spain
- Equipo Primeros Pobladores de Extremadura, Casa de la Cultura Rodríguez Moñino; Cáceres Spain
| | - Cecilia García-Campos
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH); Burgos 09002 Spain
- Anthropology Department; University College London; London UK
| | - Laura Martín-Francés
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH); Burgos 09002 Spain
- Anthropology Department; University College London; London UK
| | - Marina Martínez de Pinillos
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH); Burgos 09002 Spain
- Anthropology Department; University College London; London UK
| | - Rebeca García-González
- Laboratorio de Evolución Humana, Área de Paleontología, Dpto. de Ciencias Históricas y Geografía, Universidad de Burgos; Burgos Spain
| | - Yuliet Quintino
- Laboratorio de Evolución Humana, Área de Paleontología, Dpto. de Ciencias Históricas y Geografía, Universidad de Burgos; Burgos Spain
| | - Antoni Canals
- Equipo Primeros Pobladores de Extremadura, Casa de la Cultura Rodríguez Moñino; Cáceres Spain
- IPHES Institut Català de Paleoecologia Humana i Evolució Social; C/Marcel.lí Domingo s/n, Campus Sescelades URV (Edifici W3) Tarragona 43007 Spain
- Àrea de Prehistòria Universitat Rovira i Virgili (URV); Tarragona 43002 Spain
| | - Marina Lozano
- IPHES Institut Català de Paleoecologia Humana i Evolució Social; C/Marcel.lí Domingo s/n, Campus Sescelades URV (Edifici W3) Tarragona 43007 Spain
| | - M. Christopher Dean
- Department of Cell and Developmental Biology; University College London; London UK
| | - María Martinón-Torres
- Anthropology Department; University College London; London UK
- Laboratorio de Evolución Humana, Área de Paleontología, Dpto. de Ciencias Históricas y Geografía, Universidad de Burgos; Burgos Spain
| | - José María Bermúdez de Castro
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH); Burgos 09002 Spain
- Anthropology Department; University College London; London UK
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Šešelj M. An analysis of dental development in Pleistocene Homo using skeletal growth and chronological age. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 163:531-541. [PMID: 28432824 DOI: 10.1002/ajpa.23228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/28/2017] [Accepted: 03/28/2017] [Indexed: 11/12/2022]
Abstract
OBJECTIVES This study takes a new approach to interpreting dental development in Pleistocene Homo in comparison with recent modern humans. As rates of dental development and skeletal growth are correlated given age in modern humans, using age and skeletal growth in tandem yields more accurate dental development estimates. Here, I apply these models to fossil Homo to obtain more individualized predictions and interpretations of their dental development relative to recent modern humans. MATERIALS AND METHODS Proportional odds logistic regression models based on three recent modern human samples (N = 181) were used to predict permanent mandibular tooth development scores in five Pleistocene subadults: Homo erectus/ergaster, Neanderthals, and anatomically modern humans (AMHs). Explanatory variables include a skeletal growth indicator (i.e., diaphyseal femoral length), and chronological age. RESULTS AMHs Lagar Velho 1 and Qafzeh 10 share delayed incisor development, but exhibit considerable idiosyncratic variation within and across tooth types, relative to each other and to the reference samples. Neanderthals Dederiyeh 1 and Le Moustier 1 exhibit delayed incisor coupled with advanced molar development, but differences are reduced when femoral diaphysis length is considered. Dental development in KNM-WT 15,000 Homo erectus/ergaster, while advanced for his age, almost exactly matches the predictions once femoral length is included in the models. DISCUSSION This study provides a new interpretation of dental development in KNM-WT 15000 as primarily reflecting his faster rates of skeletal growth. While the two AMH specimens exhibit considerable individual variation, the Neanderthals exhibit delayed incisor development early and advanced molar development later in ontogeny.
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Affiliation(s)
- Maja Šešelj
- Department of Anthropology, Bryn Mawr College, 101 N Merion Ave, Bryn Mawr, Pennsylvania
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7
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Reid DJ, Guatelli-Steinberg D. Updating histological data on crown initiation and crown completion ages in southern Africans. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 162:817-829. [DOI: 10.1002/ajpa.23173] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 12/22/2016] [Accepted: 12/27/2016] [Indexed: 11/05/2022]
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8
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Bocaege E, Humphrey L. Lateral enamel growth in human incisors from Çatalhöyük in Turkey. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 161:656-666. [DOI: 10.1002/ajpa.23069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/27/2016] [Accepted: 08/01/2016] [Indexed: 11/08/2022]
Affiliation(s)
- E. Bocaege
- Université de Bordeaux, CNRS, MCC, UMR 5199 PACEABâtiment B8, Allée Geoffroy StHilaire Pessac Cedex France
| | - L.T. Humphrey
- Department of Earth SciencesNatural History MuseumLondonSW7 5BD UK
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9
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Late-Developing Supernumerary Premolars: Analysis of Different Therapeutic Approaches. Case Rep Dent 2016; 2016:2020489. [PMID: 27761271 PMCID: PMC5059562 DOI: 10.1155/2016/2020489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 08/03/2016] [Indexed: 12/16/2022] Open
Abstract
This case series describes the different potential approaches to late-developing supernumerary premolars (LDSP). LDSP are supernumerary teeth (ST) formed after the eruption of the permanent dentition; usually they develop in the premolar region of the upper and lower jaw. The choice to extract or to monitor the LDSP depends on many factors and has to be carefully planned due to the several risks that either the monitoring or the extraction could provoke. These four cases of LDSP showed different treatment plan alternatives derived from a scrupulous assessment of the clinical and radiographic information.
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10
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Xing S, Guatelli-Steinberg D, O'Hara M, Wu X, Liu W, Reid DJ. Perikymata distribution in Homo with special reference to the Xujiayao juvenile. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 157:684-93. [PMID: 26059551 DOI: 10.1002/ajpa.22760] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 04/20/2015] [Indexed: 11/06/2022]
Abstract
OBJECTIVES This study investigates where the Xujiayao juvenile (I(1) and C(1) ) fits into the array of perikymata distribution patterns found within the genus Homo. MATERIALS AND METHODS In addition to the I(1) and the C(1) of the Xujiayao juvenile, this study includes samples of early Homo (H. rudolfensis and H. erectus), Neandertals, early modern humans (Qafzeh), and recent modern humans from Southern Africa, Newcastle (UK), and North America (Inupiaq, AK). Three sets of analyses were undertaken, including a comparison of percentage of perikymata in the cervical half of the crown, repeated measures analysis of the percentage of total perikymata in each decile, and canonical variates analysis using both total perikymata number and the percentage of perikymata in the cervical half of the crown. RESULTS The I(1) and C(1) of early Homo and Neandertals have a lower percentage of perikymata in the cervical half of the crown than modern human samples. Repeated measures analysis reveals clear distinctions in the distribution of perikymata between the modern human and fossil samples. Canonical variates analysis suggests greater differences between modern humans and the fossil samples than within the fossil samples, and classifies the Xujiayao teeth among modern humans. DISCUSSION The present study further clarifies variation of perikymata distribution patterns within the genus Homo. The perikymata distribution of the Xujiayao juvenile tends to be more similar to that of modern humans than to either early Homo or Neandertals.
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Affiliation(s)
- Song Xing
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China
| | | | - Mackie O'Hara
- Department of Anthropology, the Ohio State University, Columbus, OH, 43210
| | - Xiujie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China
| | - Wu Liu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China
| | - Donald J Reid
- Department of Anthropology, the George Washington State University, Washington, DC, 20052
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11
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Kierdorf H, Witzel C, Kierdorf U, Skinner MM, Skinner MF. “Missing perikymata”-fact or fiction? A study on chimpanzee (Pan troglodytes verus) canines. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 157:276-83. [DOI: 10.1002/ajpa.22720] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 01/11/2015] [Accepted: 02/02/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Horst Kierdorf
- Department of Biology; University of Hildesheim; Hildesheim 31141 Germany
| | - Carsten Witzel
- Department of Biology; University of Hildesheim; Hildesheim 31141 Germany
| | - Uwe Kierdorf
- Department of Biology; University of Hildesheim; Hildesheim 31141 Germany
| | - Matthew M. Skinner
- School of Anthropology and Conservation; University of Kent; Canterbury CT2 7NR UK
- Department of Human Evolution; Max Planck Institute for Evolutionary Anthropology; Leipzig 04103 Germany
| | - Mark F. Skinner
- Department of Archaeology; King's Manor, University of York; York YO1 7EP UK
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12
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Tsutaya T, Yoneda M. Reconstruction of breastfeeding and weaning practices using stable isotope and trace element analyses: A review. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2014; 156 Suppl 59:2-21. [DOI: 10.1002/ajpa.22657] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 10/17/2014] [Indexed: 01/09/2023]
Affiliation(s)
- Takumi Tsutaya
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Kashiwanoha 5-1-5 Kashiwa Chiba 277-8562 Japan
| | - Minoru Yoneda
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Kashiwanoha 5-1-5 Kashiwa Chiba 277-8562 Japan
- The University Museum, The University of Tokyo; Hongo 7-3-1 Bunkyo Tokyo 113-0033 Japan
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13
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Age of linear enamel hypoplasia formation based on Massler and colleagues’ and Reid and Dean's standards in a Polish sample dated to 13th–18th century CE. HOMO-JOURNAL OF COMPARATIVE HUMAN BIOLOGY 2014; 65:296-310. [DOI: 10.1016/j.jchb.2013.11.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 11/01/2013] [Indexed: 11/30/2022]
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14
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Hassett BR. Missing defects? A comparison of microscopic and macroscopic approaches to identifying linear enamel hypoplasia. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2013; 153:463-72. [DOI: 10.1002/ajpa.22445] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 11/18/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Brenna R. Hassett
- Palaeontology, Natural History Museum; London SW7 5BD, University College London; London WC1H 0PY UK
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15
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Hlusko LJ, Carlson JP, Guatelli-Steinberg D, Krueger KL, Mersey B, Ungar PS, Defleur A. Neanderthal teeth from moula-guercy, Ardèche, France. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2013; 151:477-91. [DOI: 10.1002/ajpa.22291] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 04/16/2013] [Indexed: 01/10/2023]
Affiliation(s)
- Leslea J. Hlusko
- Human Evolution Research Center; University of California Berkeley; 3101 Valley Life Sciences Building; Berkeley; CA; 94720
| | - Joshua P. Carlson
- Human Evolution Research Center; University of California Berkeley; 3101 Valley Life Sciences Building; Berkeley; CA; 94720
| | - Debbie Guatelli-Steinberg
- Department of Anthropology; 4034 Smith Laboratory, The Ohio State University; 174 West 18th Columbus; OH; 43210-1106
| | - Kristin L. Krueger
- Department of Anthropology; Loyola University Chicago; Chicago; IL; 60660
| | - Ben Mersey
- Human Evolution Research Center; University of California Berkeley; 3101 Valley Life Sciences Building; Berkeley; CA; 94720
| | - Peter S. Ungar
- Department of Anthropology; University of Arkansas; Fayetteville; AR; 72701
| | - Alban Defleur
- CNRS UMR 5276; Laboratoire de Géologie de Lyon, Ecole Normale Supérieure de Lyon; 46, Allée d'Italie, 69364 Lyon; Cedex; 07; France
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16
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Sešelj M. Relationship between dental development and skeletal growth in modern humans and its implications for interpreting ontogeny in fossil hominins. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2012; 150:38-47. [PMID: 23283663 DOI: 10.1002/ajpa.22209] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 11/14/2012] [Accepted: 11/14/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Maja Sešelj
- Department of Anthropology, New York University, NY 10003, USA.
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17
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Enamel extension rate patterns in modern human teeth: Two approaches designed to establish an integrated comparative context for fossil primates. J Hum Evol 2012; 63:475-86. [DOI: 10.1016/j.jhevol.2012.05.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 02/24/2012] [Accepted: 05/01/2012] [Indexed: 11/19/2022]
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18
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Middle childhood and modern human origins. HUMAN NATURE-AN INTERDISCIPLINARY BIOSOCIAL PERSPECTIVE 2012; 22:249-80. [PMID: 22388876 DOI: 10.1007/s12110-011-9119-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The evolution of modern human life history has involved substantial changes in the overall length of the subadult period, the introduction of a novel early childhood stage, and many changes in the initiation, termination, and character of the other stages. The fossil record is explored for evidence of this evolutionary process, with a special emphasis on middle childhood, which many argue is equivalent to the juvenile stage of African apes. Although the "juvenile" and "middle childhood" stages appear to be the same from a broad comparative perspective, in that they begin with the eruption of the first molar and the achievement of the majority of adult brain size and end with sexual maturity, the detailed differences in the expression of these two stages, and how they relate to the preceding and following stages, suggest that a distinction should be maintained between them to avoid blurring subtle, but important, differences.
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Gunz P, Neubauer S, Maureille B, Hublin JJ. Virtual reconstruction of the Le Moustier 2 newborn skull. ACTA ACUST UNITED AC 2011. [DOI: 10.4000/paleo.2107] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Smith TM, Guatelli-Steinberg D. Developmental variation of the primate dentition: The 2011 AAPA symposium in honor of Don Reid. Evol Anthropol 2011; 20:161-3. [DOI: 10.1002/evan.20313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Dental evidence for ontogenetic differences between modern humans and Neanderthals. Proc Natl Acad Sci U S A 2010; 107:20923-8. [PMID: 21078988 DOI: 10.1073/pnas.1010906107] [Citation(s) in RCA: 169] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Humans have an unusual life history, with an early weaning age, long childhood, late first reproduction, short interbirth intervals, and long lifespan. In contrast, great apes wean later, reproduce earlier, and have longer intervals between births. Despite 80 y of speculation, the origins of these developmental patterns in Homo sapiens remain unknown. Because they record daily growth during formation, teeth provide important insights, revealing that australopithecines and early Homo had more rapid ontogenies than recent humans. Dental development in later Homo species has been intensely debated, most notably the issue of whether Neanderthals and H. sapiens differ. Here we apply synchrotron virtual histology to a geographically and temporally diverse sample of Middle Paleolithic juveniles, including Neanderthals, to assess tooth formation and calculate age at death from dental microstructure. We find that most Neanderthal tooth crowns grew more rapidly than modern human teeth, resulting in significantly faster dental maturation. In contrast, Middle Paleolithic H. sapiens juveniles show greater similarity to recent humans. These findings are consistent with recent cranial and molecular evidence for subtle developmental differences between Neanderthals and H. sapiens. When compared with earlier hominin taxa, both Neanderthals and H. sapiens have extended the duration of dental development. This period of dental immaturity is particularly prolonged in modern humans.
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Cardoso HF, Heuzé Y, Júlio P. Secular change in the timing of dental root maturation in Portuguese boys and girls. Am J Hum Biol 2010; 22:791-800. [DOI: 10.1002/ajhb.21084] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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New immature hominin fossil from European Lower Pleistocene shows the earliest evidence of a modern human dental development pattern. Proc Natl Acad Sci U S A 2010; 107:11739-44. [PMID: 20547843 DOI: 10.1073/pnas.1006772107] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Here we present data concerning the pattern of dental development derived from the microcomputed tomography (microCT) study of a recently discovered immature hominin mandible with a mixed dentition recovered from the TD6 level of the Gran Dolina Lower Pleistocene cave site in Sierra de Atapuerca, northern Spain. These data confirm our previous results that nearly 1 million years ago at least one European hominin species had a fully modern pattern of dental development with a clear slowdown in the development of the molar field regarding the anterior dental field. Furthermore, using available information about enamel formation times and root extension rates in chimpanzees, early hominins, and modern humans, we have estimated that the formation time of the upper and lower first molars of individual 5 (H5) from TD6, which had just erupted at the time of the death of this individual, ranges between 5.3 and 6.6 y. Therefore, the eruption time of the first permanent molars (M1) in the TD6 hominins was within the range of variation of modern human populations. Because the time of M1 eruption in primates is a robust marker of life history, we suggest, as a working hypothesis, that these hominins had a prolonged childhood in the range of the variation of modern humans. If this hypothesis is true, it implies that the appearance in Homo of this important developmental biological feature and an associated increase in brain size preceded the development of the neocortical areas leading to the cognitive capabilities that are thought to be exclusive to Homo sapiens.
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Liversidge HM. Interpreting group differences using Demirjian's dental maturity method. Forensic Sci Int 2010; 201:95-101. [PMID: 20304571 DOI: 10.1016/j.forsciint.2010.02.032] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Accepted: 02/23/2010] [Indexed: 10/19/2022]
Abstract
Although Demirjian's method is designed to assess dental maturity at the individual level, significant differences between average dental age and real age for groups have been interpreted as population differences. The aim of this study was to describe the variation in maturity score for age and age for maturity score from a large collaborative database of children and discuss methods adapted for groups in light of this. Tooth stages from radiographs of 4710 males and 4661 females (age 2-18) were used and dental maturity scores calculated using Demirjian and Goldstein. The mean, standard deviation, standard error and 95% confidence intervals of maturity score by age group (6 and 12 months groups) and age by maturity score (5 points) groups were calculated. Adapted maturity curves from 13 published studies of boys from Europe, Middle East, Africa, India, China and South America were compared to the database. Most adapted curves at the 50th percentile from world regions fell within the 95% confidence intervals. Those that did not, were hampered by small sample size or poorly fitting curves. This is complicates by the inclusion of mature individuals. Few studies adapting Demirjian's method provide sufficient or appropriate statistics to compare maturation of individual teeth. The wide 95% confidence intervals for maturity score by age, age by maturity score, age of individual tooth stages and large number of sequences suggest that the significant differences in dental maturity score do not reflect any biological difference in the timing of tooth formation stages at the population level. Demirjian's dental maturity method is inappropriate to assess population differences in dental maturity and adapting scores for age or age for scores for different groups of children is probably unnecessary.
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Affiliation(s)
- H M Liversidge
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Turner Street, London E1 2AD, United Kingdom.
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Dental maturational sequence and dental tissue proportions in the early Upper Paleolithic child from Abrigo do Lagar Velho, Portugal. Proc Natl Acad Sci U S A 2010; 107:1338-42. [PMID: 20080622 DOI: 10.1073/pnas.0914202107] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Neandertals differ from recent and terminal Pleistocene human populations in their patterns of dental development, endostructural (internal structure) organization, and relative tissue proportions. Although significant changes in craniofacial and postcranial morphology have been found between the Middle Paleolithic and earlier Upper Paleolithic modern humans of western Eurasia and the terminal Pleistocene and Holocene inhabitants of the same region, most studies of dental maturation and structural morphology have compared Neandertals only to later Holocene humans. To assess whether earlier modern humans contrasted with later modern populations and possibly approached the Neandertal pattern, we used high-resolution microtomography to analyze the remarkably complete mixed dentition of the early Upper Paleolithic (Gravettian) child from Abrigo do Lagar Velho, Portugal, and compared it to a Neandertal sample, the late Upper Paleolithic (Magdalenian) child of La Madeleine, and a worldwide extant human sample. Some aspects of the dental maturational pattern and tooth endostructural organization of Lagar Velho 1 are absent from extant populations and the Magdalenian specimen and are currently documented only among Neandertals. Therefore, a simple Neandertal versus modern human dichotomy is inadequate to accommodate the morphostructural and developmental variation represented by Middle Paleolithic and earlier Upper Paleolithic populations. These data reinforce the complex nature of Neandertal-modern human similarities and differences, and document ongoing human evolution after the global establishment of modern human morphology.
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FEENEY ROBINN, ZERMENO JOHNP, REID DONALDJ, NAKASHIMA SYOZI, SANO HIROSHI, BAHAR ARMASASTRA, HUBLIN JEANJACQUES, SMITH TANYAM. Enamel thickness in Asian human canines and premolars. ANTHROPOL SCI 2010. [DOI: 10.1537/ase.091006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- ROBIN N.M. FEENEY
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig
| | - JOHN P. ZERMENO
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA
| | - DONALD J. REID
- Department of Oral Biology, School of Dental Sciences, Newcastle University, Newcastle upon Tyne
| | - SYOZI NAKASHIMA
- Research and Technology Headquarters, Oral Care Research Laboratories, Odawara
| | - HIROSHI SANO
- Product Development Department, International Division, Lion Corporation, Tokyo
| | | | - JEAN-JACQUES HUBLIN
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig
| | - TANYA M. SMITH
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA
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Growth and Development of the Nariokotome Youth, KNM-WT 15000. VERTEBRATE PALEOBIOLOGY AND PALEOANTHROPOLOGY 2009. [DOI: 10.1007/978-1-4020-9980-9_10] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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Guatelli-Steinberg D, Sciulli PW, Betsinger TK. Dental crown size and sex hormone concentrations: Another look at the development of sexual dimorphism. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2008; 137:324-33. [DOI: 10.1002/ajpa.20878] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Smith TM, Tafforeau P. New visions of dental tissue research: Tooth development, chemistry, and structure. Evol Anthropol 2008. [DOI: 10.1002/evan.20176] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Smith TM, Toussaint M, Reid DJ, Olejniczak AJ, Hublin JJ. Rapid dental development in a Middle Paleolithic Belgian Neanderthal. Proc Natl Acad Sci U S A 2007; 104:20220-5. [PMID: 18077342 PMCID: PMC2154412 DOI: 10.1073/pnas.0707051104] [Citation(s) in RCA: 148] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2007] [Indexed: 11/18/2022] Open
Abstract
The evolution of life history (pace of growth and reproduction) was crucial to ancient hominin adaptations. The study of dental development facilitates assessment of growth and development in fossil hominins with greater precision than other skeletal analyses. During tooth formation, biological rhythms manifest in enamel and dentine, creating a permanent record of growth rate and duration. Quantification of these internal and external incremental features yields developmental benchmarks, including ages at crown completion, tooth eruption, and root completion. Molar eruption is correlated with other aspects of life history. Recent evidence for developmental differences between modern humans and Neanderthals remains ambiguous. By measuring tooth formation in the entire dentition of a juvenile Neanderthal from Scladina, Belgium, we show that most teeth formed over a shorter time than in modern humans and that dental initiation and eruption were relatively advanced. By registering manifestations of stress across the dentition, we are able to present a precise chronology of Neanderthal dental development that differs from modern humans. At 8 years of age at death, this juvenile displays a degree of development comparable with modern human children who are several years older. We suggest that age at death in juvenile Neanderthals should not be assessed by comparison with modern human standards, particularly those derived from populations of European origin. Moreover, evidence from the Scladina juvenile and other similarly aged hominins suggests that a prolonged childhood and slow life history are unique to Homo sapiens.
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Affiliation(s)
- Tanya M Smith
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany.
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Smith TM. Incremental dental development: methods and applications in hominoid evolutionary studies. J Hum Evol 2007; 54:205-24. [PMID: 18045649 DOI: 10.1016/j.jhevol.2007.09.020] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2006] [Accepted: 09/30/2007] [Indexed: 10/22/2022]
Abstract
This survey of dental microstructure studies reviews recent methods used to quantify developmental variables (daily secretion rate, periodicity of long-period lines, extension rate, formation time) and applications to the study of hominoid evolution. While requisite preparative and analytical methods are time consuming, benefits include more precise identification of tooth crown initiation and completion than conventional radiographic approaches. Furthermore, incremental features facilitate highly accurate estimates of the speed and duration of crown and root formation, stress experienced during development (including birth), and age at death. These approaches have provided insight into fossil hominin and Miocene hominoid life histories, and have also been applied to ontogenetic and taxonomic studies of fossil apes and humans. It is shown here that, due to the rapidly evolving nature of dental microstructure studies, numerous methods have been applied over the past few decades to characterize the rate and duration of dental development. Yet, it is often unclear whether data derived from different methods are comparable or which methods are the most accurate. Areas for future research are identified, including the need for validation and standardization of certain methods, and new methods for integrating nondestructive structural and developmental studies are highlighted.
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Affiliation(s)
- Tanya M Smith
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103 Leipzig, Germany.
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Guatelli-Steinberg D, Reid DJ. What molars contribute to an emerging understanding of lateral enamel formation in Neandertals vs. modern humans. J Hum Evol 2007; 54:236-50. [PMID: 18045650 DOI: 10.1016/j.jhevol.2007.09.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2006] [Accepted: 09/30/2007] [Indexed: 11/25/2022]
Abstract
Two hypotheses, based on previous work on Neandertal anterior and premolar teeth, are investigated here: (1) that estimated molar lateral enamel formation times in Neandertals are likely to fall within the range of modern human population variation, and (2) that perikymata (lateral enamel growth increments) are distributed across cervical and occlusal halves of the crown differently in Neandertals than they are in modern humans. To investigate these hypotheses, total perikymata numbers and the distribution of perikymata across deciles of crown height were compared for Neandertal, northern European, and southern African upper molar mesiobuccal (mb) cusps, lower molar mesiobuccal cusps, and the lower first molar distobuccal (db) cusp. Sample sizes range from five (Neandertal M(1)db) to 29 (southern African M(1)mb). Neandertal mean perikymata numbers were found to differ significantly from those of both modern human samples (with the Neandertal mean higher) only for the M(2)mb. Regression analysis suggests that, with the exception of the M(2)mb, the hypothesis of equivalence between Neandertal and modern human lateral enamel formation time cannot be rejected. For the M(2)mb, regression analysis strongly suggests that this cusp took longer to form in the Neandertal sample than it did in the southern African sample. Plots of perikymata numbers across deciles of crown height demonstrate that Neandertal perikymata are distributed more evenly across the cervical and occlusal halves of molar crowns than they are in the modern human samples. These results are integrated into a discussion of Neandertal and modern human lateral enamel formation across the dentition, with reference to issues of life history and enamel growth processes.
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