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Kenessey DE, Stojanowski CM, Paul KS. Evaluating predictions of the patterning cascade model of crown morphogenesis in the human lower mixed and permanent dentition. PLoS One 2024; 19:e0304455. [PMID: 38935640 PMCID: PMC11210800 DOI: 10.1371/journal.pone.0304455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 05/13/2024] [Indexed: 06/29/2024] Open
Abstract
OBJECTIVE The patterning cascade model of crown morphogenesis has been studied extensively in a variety of organisms to elucidate the evolutionary history surrounding postcanine tooth form. The current research is the first to use a large modern human sample to examine whether the crown configuration of lower deciduous and permanent molars aligns with expectations derived from the model. This study has two main goals: 1) to determine if metameric and antimeric pairs significantly differ in size, accessory trait expression, and relative intercusp spacing, and 2) assess whether the relative distance among early-forming cusps accounts for observed variation in accessory cusp expression. METHODS Tooth size, intercusp distance, and morphological trait expression data were collected from 3D scans of mandibular dental casts representing participants of the Harvard Solomon Islands Project. Paired tests were utilized to compare tooth size, accessory trait expression, and relative intercusp distance between diphyodont metameres and permanent antimeres. Proportional odds logistic regression was implemented to investigate how the odds of greater accessory cusp expression vary as a function of the distance between early-developing cusps. RESULTS/SIGNIFICANCE Comparing paired molars, significant differences were identified for tooth size and cusp 5 expression. Several relative intercusp distances emerged as important predictors of cusp 6 expression, however, results for cusp 5 and cusp 7 did not match expected patterns. These findings support previous quantitative genetic results and suggest the development of neighboring crown structures represents a zero-sum partitioning of cellular territory and resources. As such, this study contributes to a better understanding of the foundations of deciduous and permanent molar crown variation in humans.
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Affiliation(s)
- Dori E. Kenessey
- Department of Anthropology, U niversity of Nevada, Reno, Nevada, United States of America
| | - Christopher M. Stojanowski
- Center for Bioarchaeological Research, School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, United States of America
| | - Kathleen S. Paul
- Department of Anthropology, University of Arkansas, Fayetteville, Arkansas, United States of America
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2
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Sexual Dimorphism in the Fibular Extremities of Italians and South Africans of Identified Modern Human Skeletal Collections: A Geometric Morphometric Approach. BIOLOGY 2022; 11:biology11071079. [PMID: 36101455 PMCID: PMC9312998 DOI: 10.3390/biology11071079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/08/2022] [Accepted: 07/13/2022] [Indexed: 11/16/2022]
Abstract
Simple Summary The extremities of the fibula may reflect differences between males and females, although so far only few studies included this bone for post-cranial sex assessment. Our work explored shape and size variation between sexes in identified skeletal samples comprising different populations from Italy and South Africa and showed that fibular extremities are significantly smaller, with narrower articular surfaces in females than in males. Consistent sex-related differences are revealed in fibular form and size in Italians but not in South Africans. Potential application in forensic and bioarcheological contexts may benefit from the use of this approach. Abstract Fibular metric variations have revealed their potential in distinguishing between males and females; however the fibula remains scarcely analyzed in studies of sexual dimorphism. This work aims at investigating sexually dimorphic features in fibular proximal and distal epiphyses through geometric morphometrics methods. A total of 136 left fibulae, from two Italian and one South African identified skeletal collections were virtually acquired through CT and laser scanning and analyzed using geometric morphometric methods. Statistical analyses were performed on shape, form, and size variables. Results show that fibular epiphyses are smaller with narrower articular surfaces in females than in males in both extremities. Relevant sexual differences emerge in fibular form and size for the two Italian samples but not for the South African one, likely for its small sample size. Discriminant analysis on form principal components (PCs) offers accuracy above 80% when the samples are pooled, and reaches accuracy of 80–93% when the Italian samples are considered separately. However, our method on form PCs was not successful for the South African sample (50–53% accuracy), possibly due to the small sample size. These results show relevant morphological variation in relation to fibular form and size, with a degree of accuracy that indicates the utility of the present method for sexing human fibulae in both forensic and bioarchaeological contexts for Italian samples.
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Paul KS, Stojanowski CM, Hughes T, Brook AH, Townsend GC. Genetic Correlation, Pleiotropy, and Molar Morphology in a Longitudinal Sample of Australian Twins and Families. Genes (Basel) 2022; 13:genes13060996. [PMID: 35741762 PMCID: PMC9222655 DOI: 10.3390/genes13060996] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 01/01/2023] Open
Abstract
This study aims to expand our understanding of the genetic architecture of crown morphology in the human diphyodont dentition. Here, we present bivariate genetic correlation estimates for deciduous and permanent molar traits and evaluate the patterns of pleiotropy within (e.g., m1–m2) and between (e.g., m2–M1) dentitions. Morphology was observed and scored from dental models representing participants of an Australian twin and family study (deciduous n = 290, permanent n = 339). Data collection followed Arizona State University Dental Anthropology System standards. Genetic correlation estimates were generated using maximum likelihood variance components analysis in SOLAR v.8.1.1. Approximately 23% of deciduous variance components models and 30% of permanent variance components models yielded significant genetic correlation estimates. By comparison, over half (56%) of deciduous–permanent homologues (e.g., m2 hypocone–M1 hypocone) were significantly genetically correlated. It is generally assumed that the deciduous and permanent molars represent members of a meristic molar field emerging from the primary dental lamina. However, stronger genetic integration among m2–M1/M2 homologues than among paired deciduous traits suggests the m2 represents the anterior-most member of a “true” molar field. The results indicate genetic factors act at distinct points throughout development to generate homologous molar form, starting with the m2, which is later replaced by a permanent premolariform crown.
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Affiliation(s)
- Kathleen S. Paul
- Department of Anthropology, University of Arkansas, Fayetteville, AR 72701, USA
- Correspondence: ; Tel.: +1-479-718-1352
| | - Christopher M. Stojanowski
- Center for Bioarchaeological Research, School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287, USA;
| | - Toby Hughes
- Adelaide Dental School, The University of Adelaide, Adelaide, SA 5005, Australia; (T.H.); (A.H.B.)
| | - Alan H. Brook
- Adelaide Dental School, The University of Adelaide, Adelaide, SA 5005, Australia; (T.H.); (A.H.B.)
- Barts and the London Dental Institute, Queen Mary University of London, London EC1M 6AX, UK
| | - Grant C. Townsend
- Adelaide Dental School, The University of Adelaide, Adelaide, SA 5005, Australia; (T.H.); (A.H.B.)
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Slimak L, Zanolli C, Higham T, Frouin M, Schwenninger JL, Arnold LJ, Demuro M, Douka K, Mercier N, Guérin G, Valladas H, Yvorra P, Giraud Y, Seguin-Orlando A, Orlando L, Lewis JE, Muth X, Camus H, Vandevelde S, Buckley M, Mallol C, Stringer C, Metz L. Modern human incursion into Neanderthal territories 54,000 years ago at Mandrin, France. SCIENCE ADVANCES 2022; 8:eabj9496. [PMID: 35138885 PMCID: PMC8827661 DOI: 10.1126/sciadv.abj9496] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Determining the extent of overlap between modern humans and other hominins in Eurasia, such as Neanderthals and Denisovans, is fundamental to understanding the nature of their interactions and what led to the disappearance of archaic hominins. Apart from a possible sporadic pulse recorded in Greece during the Middle Pleistocene, the first settlements of modern humans in Europe have been constrained to ~45,000 to 43,000 years ago. Here, we report hominin fossils from Grotte Mandrin in France that reveal the earliest known presence of modern humans in Europe between 56,800 and 51,700 years ago. This early modern human incursion in the Rhône Valley is associated with technologies unknown in any industry of that age outside Africa or the Levant. Mandrin documents the first alternating occupation of Neanderthals and modern humans, with a modern human fossil and associated Neronian lithic industry found stratigraphically between layers containing Neanderthal remains associated with Mousterian industries.
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Affiliation(s)
- Ludovic Slimak
- CNRS, UMR 5608, TRACES, Université de Toulouse Jean Jaurès, 5 Allées Antonio Machado, 31058 Toulouse Cedex 9, France
- Corresponding author. (L.S.); (C.Z.)
| | - Clément Zanolli
- Université de Bordeaux, CNRS, MCC, PACEA, UMR 5199, 33600 Pessac, France
- Corresponding author. (L.S.); (C.Z.)
| | - Tom Higham
- Research Laboratory for Archaeology and the History of Art, University of Oxford, Dyson Perrins Building, South Parks Road, Oxford OX1 3QY, UK
- Department of Evolutionary Anthropology, University of Vienna, University Biology Building, Djerassiplatz 1, A-1030 Vienna, Austria
| | - Marine Frouin
- Research Laboratory for Archaeology and the History of Art, University of Oxford, Dyson Perrins Building, South Parks Road, Oxford OX1 3QY, UK
- Department of Geosciences, Stony Brook University, 255 Earth and Space Sciences Building, Stony Brook, NY 11794-2100, USA
- Turkana Basin Institute, Stony Brook University, Stony Brook, NY 11794-4364, USA
| | - Jean-Luc Schwenninger
- Research Laboratory for Archaeology and the History of Art, University of Oxford, Dyson Perrins Building, South Parks Road, Oxford OX1 3QY, UK
| | - Lee J. Arnold
- School of Physical Sciences, Environment Institute, Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, North Terrace Campus, Adelaide, SA 5005, Australia
| | - Martina Demuro
- School of Physical Sciences, Environment Institute, Institute for Photonics and Advanced Sensing (IPAS), University of Adelaide, North Terrace Campus, Adelaide, SA 5005, Australia
| | - Katerina Douka
- Department of Evolutionary Anthropology, University of Vienna, University Biology Building, Djerassiplatz 1, A-1030 Vienna, Austria
- Department of Archaeology, Max Planck Institute for the Science of Human History, Kahlaische, Str. 10, 07745 Jena, Germany
| | - Norbert Mercier
- CNRS, UMR 5060, Institut de Recherche sur les Archéomatériaux and Centre de Recherche en Physique Appliquée à l’Archéologie (CRP2A), Maison de l’Archéologie, Université Bordeaux Montaigne, 33607 Pessac, France
| | - Gilles Guérin
- Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, UMR 8212 CEA CNRS UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Hélène Valladas
- Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, UMR 8212 CEA CNRS UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Pascale Yvorra
- Aix-Marseille Université, CNRS, Min. Culture, UMR 7269, LAMPEA, Maison Méditerranéenne des Sciences de l’Homme, BP 647, 5 rue du Château de l’Horloge, F-13094, Aix-en-Provence Cedex 2, France
| | - Yves Giraud
- Aix-Marseille Université, CNRS, Min. Culture, UMR 7269, LAMPEA, Maison Méditerranéenne des Sciences de l’Homme, BP 647, 5 rue du Château de l’Horloge, F-13094, Aix-en-Provence Cedex 2, France
| | | | - Ludovic Orlando
- CNRS, UMR 5288, CAGT, Université Toulouse III Paul Sabatier, Toulouse, France
| | - Jason E. Lewis
- Turkana Basin Institute, Stony Brook University, Stony Brook, NY 11794-4364, USA
- Department of Anthropology, Stony Brook University, Stony Brook, NY 11794-4364, USA
| | | | - Hubert Camus
- PROTEE-EXPERT, 4 rue des Aspholdèles, 34750 Villeneuve-lès-Maguelone, France
| | - Ségolène Vandevelde
- Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, UMR 8212 CEA CNRS UVSQ, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- Université Paris 1–Panthéon-Sorbonne, Équipe Archéologies Environnementales, UMR 7041, ArScAn, Équipe Archéologies Environnementales, 21 allée de l’Université, 92023 Nanterre Cedex, France
| | - Mike Buckley
- Department of Earth and Environmental Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Carolina Mallol
- Archaeological Micromorphology and Biomarkers Laboratory (AMBI Lab), Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Geografía e Historia, UDI Prehistoria, Arqueología e Historia Antigua, Facultad de Geografía e Historia, Universidad de La Laguna, Tenerife, Spain
| | - Chris Stringer
- Centre for Human Evolution Research (CHER), Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK
| | - Laure Metz
- Aix-Marseille Université, CNRS, Min. Culture, UMR 7269, LAMPEA, Maison Méditerranéenne des Sciences de l’Homme, BP 647, 5 rue du Château de l’Horloge, F-13094, Aix-en-Provence Cedex 2, France
- College of Liberal Arts and Sciences, University of Connecticut, 215 Glenbrook Road, U-4098, Storrs, CT 06269-4098, USA
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Bailey SE, Sorrentino R, Mancuso G, Hublin JJ, Benazzi S. Taxonomic differences in deciduous lower first molar crown outlines of Homo sapiens and Homo neanderthalensis. J Hum Evol 2020; 147:102864. [PMID: 32927399 DOI: 10.1016/j.jhevol.2020.102864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/18/2020] [Accepted: 07/18/2020] [Indexed: 11/26/2022]
Abstract
Recent studies have demonstrated that the outline shapes of deciduous upper and lower second molars and the deciduous upper first molar are useful for diagnosing hominin taxa-especially Homo neanderthalensis and Homo sapiens. Building on these studies, we use geometric morphometric methods to assess the taxonomic significance of the crown outline of the lower first deciduous molar (dm1). We test whether the crown shape of the dm1 distinguishes H. neanderthalensis from H. sapiens and explore whether dm1 crown shape can be used to accurately assign individuals to taxa. Our fossil sample includes 3 early H. sapiens, 7 Upper Paleolithic H. sapiens, and 13 H. neanderthalensis individuals. Our recent human sample includes 103 individuals from Africa, Australia, Europe, South America, and South Asia. Our results indicate that H. neanderthalensis dm1s cluster fairly tightly and separate well from those of Upper Paleolithic H. sapiens. However, we also found that the range of shapes in the recent human sample completely overlaps the ranges of all fossil samples. Consequently, results of the quadratic discriminant analysis based on the first 8 principal components (PCs) representing more than 90% of the variation were mixed. Lower dm1s were correctly classified in 87.3% of the individuals; the combined H. sapiens sample had greater success (90.2%) in assigning individuals than did the H. neanderthalensis sample (61.5%). When the analysis was run removing the highly variable recent human sample, accuracy increased to 84.6% for H. neanderthalensis, and 57.1% of Upper Paleolithic H. sapiens were classified correctly by using the first 4 PCs (70.3%). We conclude that caution is warranted when assigning isolated dm1 crowns to taxa; while an assignment to H. neanderthalensis has a high probability of being correct, assignment to Upper Paleolithic H. sapiens is less certain.
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Affiliation(s)
- S E Bailey
- Center for the Study of Human Origins, Department of Anthropology, New York University, New York, USA; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
| | - R Sorrentino
- Department of Biological Geological and Environmental Sciences - BiGeA, University of Bologna, Bologna, Italy; Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - G Mancuso
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - J-J Hublin
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany; Collège de France, 70005, Paris, France
| | - S Benazzi
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany; Department of Cultural Heritage, University of Bologna, Ravenna, Italy
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Morphometric analysis of the hominin talus: Evolutionary and functional implications. J Hum Evol 2020; 142:102747. [PMID: 32240884 DOI: 10.1016/j.jhevol.2020.102747] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 01/07/2020] [Accepted: 01/21/2020] [Indexed: 11/21/2022]
Abstract
The adoption of bipedalism is a key benchmark in human evolution that has impacted talar morphology. Here, we investigate talar morphological variability in extinct and extant hominins using a 3D geometric morphometric approach. The evolutionary timing and appearance of modern human-like features and their contributions to bipedal locomotion were evaluated on the talus as a whole, each articular facet separately, and multiple combinations of facets. Distinctive suites of features are consistently present in all fossil hominins, despite the presence of substantial interspecific variation, suggesting a potential connection of these suites to bipedal gait. A modern human-like condition evolved in navicular and lateral malleolar facets early in the hominin lineage compared with other facets, which demonstrate more complex morphological variation within Homininae. Interestingly, navicular facet morphology of Australopithecus afarensis is derived in the direction of Homo, whereas more recent hominin species such as Australopithecus africanus and Australopithecus sediba retain more primitive states in this facet. Combining the navicular facet with the trochlea and the posterior calcaneal facet as a functional suite, however, distinguishes Australopithecus from Homo in that the medial longitudinal arch had not fully developed in the former. Our results suggest that a more everted foot and stiffer medial midtarsal region are adaptations that coincide with the emergence of bipedalism, whereas a high medial longitudinal arch emerges later in time, within Homo. This study provides novel insights into the emergence of talar morphological traits linked to bipedalism and its transition from a facultative to an obligate condition.
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Paul KS, Stojanowski CM, Hughes TE, Brook AH, Townsend GC. Patterns of heritability across the human diphyodont dental complex: Crown morphology of Australian twins and families. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2020; 172:447-461. [DOI: 10.1002/ajpa.24019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/31/2019] [Accepted: 01/27/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Kathleen S. Paul
- Department of Anthropology University of Arkansas Fayetteville Arkansas
| | - Christopher M. Stojanowski
- Center for Bioarchaeological Research, School of Human Evolution and Social Change Arizona State University Tempe Arizona
| | - Toby E. Hughes
- Adelaide Dental School University of Adelaide Adelaide South Australia
| | - Alan H. Brook
- Adelaide Dental School University of Adelaide Adelaide South Australia
- Institute of Dental Surgery Queen Mary University of London London UK
| | - Grant C. Townsend
- Adelaide Dental School University of Adelaide Adelaide South Australia
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Sorrentino R, Belcastro MG, Figus C, Stephens NB, Turley K, Harcourt-Smith W, Ryan TM, Benazzi S. Exploring sexual dimorphism of the modern human talus through geometric morphometric methods. PLoS One 2020; 15:e0229255. [PMID: 32059040 PMCID: PMC7021319 DOI: 10.1371/journal.pone.0229255] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 02/03/2020] [Indexed: 12/26/2022] Open
Abstract
Sex determination is a pivotal step in forensic and bioarchaeological fields. Generally, scholars focus on metric or qualitative morphological features, but in the last few years several contributions have applied geometric-morphometric (GM) techniques to overcome limitations of traditional approaches. In this study, we explore sexual dimorphism in modern human tali from three early 20th century populations (Sassari and Bologna, Italy; New York, USA) at intra- and interspecific population levels using geometric morphometric (GM) methods. Statistical analyses were performed using shape, form, and size variables. Our results do not show significant differences in shape between males and females, either considering the pooled sample or the individual populations. Differences in talar morphology due to sexual dimorphism are mainly related to allometry, i.e. size-related changes of morphological traits. Discriminant function analysis using form space Principal Components and centroid size correctly classify between 87.7% and 97.2% of the individuals. The result is similar using the pooled sample or the individual population, except for a diminished outcome for the New York group (from 73.9% to 78.2%). Finally, a talus from the Bologna sample (not included in the previous analysis) with known sex was selected to run a virtual resection, followed by two digital reconstructions based on the mean shape of both the pooled sample and the Bologna sample, respectively. The reconstructed talus was correctly classified with a Ppost between 99.9% and 100%, demonstrating that GM is a valuable tool to cope with fragmentary tali, which is a common occurrence in forensic and bioarchaeological contexts.
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Affiliation(s)
- Rita Sorrentino
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Maria Giovanna Belcastro
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
- ADES, UMR 7268 CNRS/Aix-Marseille Université/EFS, Aix-Marseille Université, Bd Pierre Dramard, France
| | - Carla Figus
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Nicholas B. Stephens
- Department of Anthropology, Pennsylvania State University, State College, PA, United States of America
| | - Kevin Turley
- Department of Anthropology, University of Oregon, Eugene, OR, United States of America
| | - William Harcourt-Smith
- Graduate Center, City University of New York, New York, NY, United States of America
- New York Consortium in Evolutionary Primatology, New York, NY, United States of America
- Department of Anthropology, Lehman College, New York, NY, United States of America
- Division of Paleontology, American Museum of Natural History, New York, NY, United States of America
| | - Timothy M. Ryan
- Department of Anthropology, Pennsylvania State University, State College, PA, United States of America
| | - Stefano Benazzi
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
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Bailey SE, Brophy JK, Moggi-Cecchi J, Delezene LK. The deciduous dentition of Homo naledi: A comparative study. J Hum Evol 2019; 136:102655. [DOI: 10.1016/j.jhevol.2019.102655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 08/06/2019] [Accepted: 08/08/2019] [Indexed: 12/23/2022]
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New fossils from Jebel Irhoud, Morocco and the pan-African origin of Homo sapiens. Nature 2017; 546:289-292. [PMID: 28593953 DOI: 10.1038/nature22336] [Citation(s) in RCA: 316] [Impact Index Per Article: 45.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 04/06/2017] [Indexed: 01/08/2023]
Abstract
Fossil evidence points to an African origin of Homo sapiens from a group called either H. heidelbergensis or H. rhodesiensis. However, the exact place and time of emergence of H. sapiens remain obscure because the fossil record is scarce and the chronological age of many key specimens remains uncertain. In particular, it is unclear whether the present day 'modern' morphology rapidly emerged approximately 200 thousand years ago (ka) among earlier representatives of H. sapiens or evolved gradually over the last 400 thousand years. Here we report newly discovered human fossils from Jebel Irhoud, Morocco, and interpret the affinities of the hominins from this site with other archaic and recent human groups. We identified a mosaic of features including facial, mandibular and dental morphology that aligns the Jebel Irhoud material with early or recent anatomically modern humans and more primitive neurocranial and endocranial morphology. In combination with an age of 315 ± 34 thousand years (as determined by thermoluminescence dating), this evidence makes Jebel Irhoud the oldest and richest African Middle Stone Age hominin site that documents early stages of the H. sapiens clade in which key features of modern morphology were established. Furthermore, it shows that the evolutionary processes behind the emergence of H. sapiens involved the whole African continent.
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Pan L, Thackeray JF, Dumoncel J, Zanolli C, Oettlé A, de Beer F, Hoffman J, Duployer B, Tenailleau C, Braga J. Intra-individual metameric variation expressed at the enamel-dentine junction of lower post-canine dentition of South African fossil hominins and modern humans. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 163:806-815. [DOI: 10.1002/ajpa.23240] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 04/17/2017] [Accepted: 04/17/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Lei Pan
- 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
- Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, UMR 5288 CNRS-Université de Toulouse (Paul Sabatier); Toulouse 31000 France
| | - John Francis Thackeray
- Evolutionary Studies Institute and School of Geosciences, University of the Witwatersrand, PO WITS; Johannesburg 2050 South Africa
| | - Jean Dumoncel
- Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, UMR 5288 CNRS-Université de Toulouse (Paul Sabatier); Toulouse 31000 France
| | - Clément Zanolli
- Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, UMR 5288 CNRS-Université de Toulouse (Paul Sabatier); Toulouse 31000 France
| | - Anna Oettlé
- Department of Anatomy, School of Medicine, Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
| | - Frikkie de Beer
- Radiation Science Department; South African Nuclear Energy Corporation (Necsa); Pelindaba North West Province South Africa
| | - Jakobus Hoffman
- Radiation Science Department; South African Nuclear Energy Corporation (Necsa); Pelindaba North West Province South Africa
| | - Benjamin Duployer
- Centre Inter-universitaire de Recherche et d'Ingénierie des Matériaux, UMR 5085 CNRS-Université de Toulouse (Paul Sabatier); Toulouse Cedex 9 31062 France
| | - Christophe Tenailleau
- Centre Inter-universitaire de Recherche et d'Ingénierie des Matériaux, UMR 5085 CNRS-Université de Toulouse (Paul Sabatier); Toulouse Cedex 9 31062 France
| | - José Braga
- Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, UMR 5288 CNRS-Université de Toulouse (Paul Sabatier); Toulouse 31000 France
- Evolutionary Studies Institute and School of Geosciences, University of the Witwatersrand, PO WITS; Johannesburg 2050 South Africa
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Bermúdez de Castro JM, Martinón‐Torres M, Martín‐Francés L, Martínez de Pinillos M, Modesto‐Mata M, García‐Campos C, Wu X, Xing S, Liu W. Early Pleistocene hominin deciduous teeth from theHomo antecessorGran Dolina‐TD6 bearing level (Sierra de Atapuerca, Spain). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 163:602-615. [DOI: 10.1002/ajpa.23222] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 02/21/2017] [Accepted: 03/13/2017] [Indexed: 11/10/2022]
Affiliation(s)
- José María Bermúdez de Castro
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH)Paseo Sierra de Atapuerca 3Burgos09002 Spain
- Department of AnthropologyUniversity College London (UCL)14 Taviton StreetLondonWC1H 0BW United Kingdom
| | - María Martinón‐Torres
- Department of AnthropologyUniversity College London (UCL)14 Taviton StreetLondonWC1H 0BW United Kingdom
- Laboratorio de Evolución HumanaDepartamento de Historia, Geografía y Comunicación. Universidad de Burgos Spain
| | - Laura Martín‐Francés
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH)Paseo Sierra de Atapuerca 3Burgos09002 Spain
- Department of AnthropologyUniversity College London (UCL)14 Taviton StreetLondonWC1H 0BW United Kingdom
| | - Marina Martínez de Pinillos
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH)Paseo Sierra de Atapuerca 3Burgos09002 Spain
- Department of AnthropologyUniversity College London (UCL)14 Taviton StreetLondonWC1H 0BW United Kingdom
| | - Mario Modesto‐Mata
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH)Paseo Sierra de Atapuerca 3Burgos09002 Spain
- Equipo Primeros Pobladores de Extremadura (EPPEX), Casa de la Cultura Rodríguez MoñinoAv. Cervantes s/nCáceres10003 Spain
| | - Cecilia García‐Campos
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH)Paseo Sierra de Atapuerca 3Burgos09002 Spain
| | - Xiujie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of SciencesChinese Academy of SciencesInstitute of Vertebrate Paleontology and PaleoanthropologyBeijing100044 China
| | - Song Xing
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of SciencesChinese Academy of SciencesInstitute of Vertebrate Paleontology and PaleoanthropologyBeijing100044 China
| | - Wu Liu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of SciencesChinese Academy of SciencesInstitute of Vertebrate Paleontology and PaleoanthropologyBeijing100044 China
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Arnaud J, Benazzi S, Romandini M, Livraghi A, Panetta D, Salvadori PA, Volpe L, Peresani M. A Neanderthal deciduous human molar with incipient carious infection from the Middle Palaeolithic De Nadale cave, Italy. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 162:370-376. [DOI: 10.1002/ajpa.23111] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 08/19/2016] [Accepted: 09/01/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Julie Arnaud
- Section of Prehistorical and Anthropological Sciences, Department of Humanities; University of Ferrara; LT, Teknehub, C.so Ercole I d'Este 32 Ferrara 44121 Italy
| | - Stefano Benazzi
- Department of Cultural Heritage; University of Bologna, Via degli Ariani 1; Ravenna 48121 Italy
- Department of Human Evolution; Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6; Leipzig 04103 Germany
| | - Matteo Romandini
- Section of Prehistorical and Anthropological Sciences, Department of Humanities; University of Ferrara; LT, Teknehub, C.so Ercole I d'Este 32 Ferrara 44121 Italy
| | - Alessandra Livraghi
- Section of Prehistorical and Anthropological Sciences, Department of Humanities; University of Ferrara; LT, Teknehub, C.so Ercole I d'Este 32 Ferrara 44121 Italy
| | - Daniele Panetta
- CNR Institute of Clinical Physiology, Via G. Moruzzi 1; Pisa 56124 Italy
| | - Piero A. Salvadori
- CNR Institute of Clinical Physiology, Via G. Moruzzi 1; Pisa 56124 Italy
| | - Lisa Volpe
- Teknehub - Department di Physic and Earth Sciences; University of Ferrara, Via Saragat 1; Ferrara 44121 Italy
| | - Marco Peresani
- Section of Prehistorical and Anthropological Sciences, Department of Humanities; University of Ferrara; LT, Teknehub, C.so Ercole I d'Este 32 Ferrara 44121 Italy
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Paul KS, Astorino CM, Bailey SE. The Patterning Cascade Model and Carabelli's trait expression in metameres of the mixed human dentition: exploring a morphogenetic model. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 162:3-18. [DOI: 10.1002/ajpa.23080] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 08/08/2016] [Accepted: 08/13/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Kathleen S. Paul
- Center for Bioarchaeological Research, School of Human Evolution and Social ChangeArizona State UniversityTempe Arizona85287
| | - Claudia M. Astorino
- The Graduate School and University Center, The City University of New YorkNew York New York10016
- New York Consortium in Evolutionary PrimatologyNew York New York10028
| | - Shara E. Bailey
- New York Consortium in Evolutionary PrimatologyNew York New York10028
- Center for the Study of Human Origins, Department of AnthropologyNew York UniversityNew York New York10012
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Bailey SE, Benazzi S, Buti L, Hublin JJ. Allometry, merism, and tooth shape of the lower second deciduous molar and first permanent molar. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 159:93-105. [DOI: 10.1002/ajpa.22842] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/03/2015] [Accepted: 08/11/2015] [Indexed: 01/31/2023]
Affiliation(s)
- Shara E. Bailey
- Department of Anthropology; Center for the Study of Human Origins, New York University; New York NY 10003
- Department of Human Evolution; Max Planck Institute for Evolutionary Anthropology; Leipzig D-04103 Germany
| | - Stefano Benazzi
- Department of Human Evolution; Max Planck Institute for Evolutionary Anthropology; Leipzig D-04103 Germany
- Department of Cultural Heritage; University of Bologna; Ravenna 48121 Italy
| | - Laura Buti
- Department of Cultural Heritage; University of Bologna; Ravenna 48121 Italy
| | - J.-J. Hublin
- Department of Human Evolution; Max Planck Institute for Evolutionary Anthropology; Leipzig D-04103 Germany
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16
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A geometric morphometric analysis of hominin lower molars: Evolutionary implications and overview of postcanine dental variation. J Hum Evol 2015; 82:34-50. [DOI: 10.1016/j.jhevol.2015.02.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 10/05/2014] [Accepted: 02/17/2015] [Indexed: 12/29/2022]
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17
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Bailey SE, Benazzi S, Souday C, Astorino C, Paul K, Hublin JJ. Taxonomic differences in deciduous upper second molar crown outlines of Homo sapiens, Homo neanderthalensis and Homo erectus. J Hum Evol 2014; 72:1-9. [DOI: 10.1016/j.jhevol.2014.02.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 02/05/2014] [Accepted: 02/05/2014] [Indexed: 10/25/2022]
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18
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Benazzi S, Bailey SE, Peresani M, Mannino MA, Romandini M, Richards MP, Hublin JJ. Middle Paleolithic and Uluzzian human remains from Fumane Cave, Italy. J Hum Evol 2014; 70:61-8. [DOI: 10.1016/j.jhevol.2014.03.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/01/2014] [Accepted: 03/03/2014] [Indexed: 12/01/2022]
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