Australopithecine dental dimensions in a contemporary population

Keene, Harris J.

doi:10.1002/ajpa.1330270311

Cited by 14 publications

(4 citation statements)

References 3 publications

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“…The 3D model of the pulp chamber shows a single root with a chamber that can be defined as hypertaurodontic (Shaw, 1928), since the 2D Taurodontism Index is 85% (Keene, 1966; Wright, 2007). The coronal part of the pulp chamber shows four large conical horns that diverge and project externally, except for the protocone horn (Figure 3).…”

Section: Results: Metric and Morphological Descriptionsmentioning

confidence: 99%

Neanderthal teeth from Lezetxiki (Arrasate, Iberian Peninsula): New insights and reassessment

López‐Onaindia

Ruiz

Gómez‐Robles

et al. 2023

American Journal of Biological Anthropology

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Objectives We reassess the taxonomic assignment and stratigraphic context of a permanent upper first molar and a permanent lower third premolar recovered from the archeological site of Lezetxiki in the North of the Iberian Peninsula. Materials and Methods We assessed the external and internal morphology of the teeth using qualitative descriptions, crown diameters, dental tissue proportions, and geometric morphometrics. The teeth from Lezetxiki were compared with Middle Pleistocene specimens, Neanderthals, Upper Paleolithic modern humans, and recent modern humans. Results Both teeth were consistent with a Neanderthal classification. The upper first molar shows taurodontism, and its cusp proportions and overall morphology match those of Neanderthals. Geometric morphometric analyses of occlusal anatomy classify this molar as a Neanderthal with a posterior probability of 76%. The lower third premolar, which was originally classified as a lower fourth premolar, also shows a Neanderthal morphology. This premolar is classified as a Neanderthal with a posterior probability of 60%. Discussion These teeth represent the only adult Neanderthal teeth from the Western Pyrenees region found to date. The teeth were found at a stratigraphic level (designated Level III) that marks the transition level from Mousterian to Aurignacian, and are among the most recent Neanderthal remains from the north of the Iberian Peninsula.

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Section: Results: Metric and Morphological Descriptionsmentioning

confidence: 99%

Neanderthal teeth from Lezetxiki (Arrasate, Iberian Peninsula): New insights and reassessment

López‐Onaindia

Ruiz

Gómez‐Robles

et al. 2023

American Journal of Biological Anthropology

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“…Shaw (1928) has classified taurodontism arbitrarily based on relative degree of apical displacement of floor of pulp chamber into hypo, meso and hyper-taurodontism (figure 3) [66]. Various diagnostic criteria have been put forward for the identification of taurodontism which has been summarized in table 1 [5,13,29,63]. Taurodontism primarily affects the molar teeth [38].…”

Section: Taurodontismmentioning

confidence: 99%

Developmental anomalies affecting the morphology of teeth – a review

Shrestha¹,

Marla²,

Shrestha³

et al. 2016

RSBO

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The development of tooth is a complex process wherein there is series of interactions between the ectoderm and ectomesenchyme. The role of genes in determining the shape and form of a specific tooth has already been defined, the alterations in which can lead to a variety of anomalies in regards to number, size, form, shape, structure, etc. Objective: To review the literature on the developmental anomalies of teeth. Literature review: The developmental anomalies affecting the morphology exists in both deciduous & permanent dentition and shows various forms such as gemination, fusion, concrescence, dilacerations, dens evaginatus, dens invaginatus, enamel pearls, taurodontism or peg laterals. These anomalies have clinical significance concerning esthetics, malocclusion and more importantly predisposing the development of dental caries and periodontal diseases. Conclusion: Knowledge of various diagnostic criteria for identification of these developmental anomalies is significant for early diagnosis and pertinent treatment.

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“…Le degré de taurodontisme de la dent (définition in Keith 1913) est donc difficile à discuter. Divers mesures et indices ont été proposés (par exemple Keene 1966 ;Blumberg et al 1971 ;Shifman, Chanannel 1978 ;Constant, Grine 2001) pour apprécier la variabilité métrique du taurodontisme. L'état de conservation de Vaufrey 1 ne permet pas de prendre toutes ces mesures et des investigations radiologiques plus précises devront être réalisées pour discuter cet aspect de la morphologie de la dent.…”

Section: Contextes Chronologique Et Environnementalunclassified

A neandertal molar from grotte Vaufrey (Dordogne, France)

Garralda¹,

Maureille²,

Rigaud³

et al. 2004

bmsap

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La grotte Vaufrey (Dordogne) a été l'objet de fouilles archéologiques à partir de 1968. Ces fouilles ont révélé une stratigraphie complexe allant de l'Acheuléen au Moustérien. La couche I, scellée par le plancher stalagmitique A, contenait une industrie lithique moustérienne de type Quina, dans des sédiments indiquant un climat très froid et très sec, et renfermant des restes de cerf et de renne parmi la faune. Cette couche I, pour laquelle une datation par U/Th de 74 ± 18Ka (stade isotopique 4) a été obtenue, a fourni une dent humaine inventoriée Vaufrey 1.Le fossile est une molaire inférieure gauche, attribuable à un adulte. Ses dimensions et ses indices sont grands, les racines montrent une hypercémentose accusée et la chambre pulpaire est de grandeur moyenne. Son rang a été difficile à déterminer mais, sur la base de l'analyse morphologique détaillée et d'une étude comparative, nous l'avons identifiée comme une M 2 . L'usure, en particulier l'usure interproximale du côté mésial, est très accentuée. Cette particularité de Vaufrey 1 a été comparée à celle de Krapina J, qui montre une attrition différentielle similaire sur la M 2 gauche. Plusieurs méthodes statistiques ont été appliquées pour comparer les diamètres et les indices de Vaufrey 1 avec quelques échantillons de populations modernes ainsi qu'avec une importante série de Néandertaliens. Les analyses démontrent que Vaufrey 1 se distingue de la variabilité actuelle et rentre pleinement dans celle des Néandertaliens anciens avec des dents longues et larges.

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Australopithecine dental dimensions in a contemporary population

Cited by 14 publications

References 3 publications

Neanderthal teeth from Lezetxiki (Arrasate, Iberian Peninsula): New insights and reassessment

Neanderthal teeth from Lezetxiki (Arrasate, Iberian Peninsula): New insights and reassessment

Developmental anomalies affecting the morphology of teeth – a review

A neandertal molar from grotte Vaufrey (Dordogne, France)

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