Journal ArticleDOI
Tooth size and arcadal length correlates in man
J. A. Kieser,H. T. Groeneveld +1 more
TLDR
A strong association between arcadal length (jaw size) dependence, and the dimensional stability of individual teeth is suggested, which allows for a reassessment of some of the problems associated with hominid dental evolution.Abstract:
Intra-arcadal mesiodistal and buccolingual tooth size correlations were evaluated in a sample of 125 caucasoids with ideal occlusion. Dental dimensions were corrected for arcade mength (as a measure of jaw size) by a series of regression analyses of each mesiodistal dimension on the sum of the mesiodistal dimensions within each arcade. Regression coefficients of tooth dimension on arcade length were calculated to gain an insight into the dimensional sensitivity of individual teeth to arcade length variation. The data presented here suggest a strong association between arcadal length (jaw size) dependence, and the dimensional stability of individual teeth. When corrected for arcade length, a definite pattern of tooth size correlation emerges: postcanine maxillary and mandibular teeth are negatively correlated to the anterior teeth and are positively correlated to one another. The hypothesis is developed that anterior and postcanine teeth should be viewed as two separate and negatively size-correlated units, beyond the boundaries of the four morphological tooth classes. Recognition of this basic dichotomous size arrangement within each jaw allows for a reassessment of some of the problems associated with hominid dental evolution.read more
Citations
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Journal ArticleDOI
Geometric morphometric analysis of the crown morphology of the lower first premolar of hominins, with special attention to Pleistocene Homo
Aida Gómez-Robles,María Martinón-Torres,José María Bermúdez de Castro,Leyre Prado,Susana Sarmiento,Juan Luis Arsuaga +5 more
TL;DR: The results show a clear distinction between the morphology seen in earlier hominin taxa such as Australopithecus and African early Homo, as well as Asian H. erectus, and more recent groups such as European H. heidelbergensis, neanderthalensis, and H. sapiens.
Journal ArticleDOI
Allometric relations of teeth and jaws in man.
TL;DR: Allometric analyses indicate that mandibular length scales negatively allometric to maxilloalveolar length and to bigonial width, that canine base area scales positively to upper and lower jaw length, and that all the other teeth scale negatively to jaw length.
Journal ArticleDOI
New permanent teeth from Gran Dolina-TD6 (Sierra de Atapuerca). The bearing of Homo antecessor on the evolutionary scenario of Early and Middle Pleistocene Europe.
María Martinón-Torres,José María Bermúdez de Castro,Marina Martínez de Pinillos,Mario Modesto-Mata,Song Xing,Song Xing,Laura Martín-Francés,Cecilia García-Campos,Xiujie Wu,Wu Liu +9 more
TL;DR: Analysis of unpublished hominin dental remains recovered from the late Early Pleistocene Gran Dolina-TD6.2 level of the Sierra de Atapuerca supports the taxonomic validity of Homo antecessor, since this species presents a unique mosaic of traits.
Journal ArticleDOI
Changes in the lower premolar-size sequence during hominid evolution. Physlogenetic implications
TL;DR: The size relationship between the crown area of the lower canines, third and fourth premolars, and first molars in hominids is examined and the P4:P3 size ratio is considered as an excellent indicator of the taxonomic and philogenetic status of fossil hominid.
References
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Journal ArticleDOI
The functional adaptations of primate molar teeth
TL;DR: The second molars of insectivorous species were found to parallel closely those of leaf-eating species, and the smallest Living primate leaf-eater is on order of magnitude larger than the largest living primate insectivore.
Journal ArticleDOI
A new species of the genus homo from olduvai gorge.
TL;DR: The new material found in 1963 makes it possible to draw conclusions and to give a diagnosis for a new species of the genus Homo, as shown in this article.
BookDOI
Size and scaling in primate biology
TL;DR: Although the subject matter and specific details of the issues considered in the 20 chapters that follow are very diversified, all topics share the same fundamental and unifying biological theme: body size variation in primates and its implications for behavior and ecology, anatomy and physiology, and evolution.