Three‐rooted mandibular first permanent molars and the question of American Indian Origins
Bibliographic Data
| ID | 8311403 |
|---|---|
| Authors | Christy G Turner (0009-0004-4344-2869, Arizona State University, corresponding author) |
| Year | 1971 |
| Volume | 34 |
| Issue | 2 |
| Pages | 229-241 |
| Publication date | 1971-03-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.1330340207 |
| PMID | 5572604 |
| OpenAlex | W1980356889 |
| Language | EN |
| Citations received | 43 |
| References cited | 7 |
Three‐rooted mandibular first molars (3RM1) are characteristic of Asian and Asian‐derived populations, particularly Aleuts (whose 3RM1 frequency is the highest in the world) and Eskimos. Similarities in the frequency of these teeth between American Indians and contemporary peoples of southeastern Asia indicate a closer relation between these groups than between American Indians and Aleut‐Eskimos. Three‐rooted mandibular first molar frequency does not differ significantly in males and females except in Aleut‐Eskimos. Bilateral asymmetry of 3RM1 is relatively frequent in both sexes and all groups. All American Indian groups examined have a low frequency of 3RM1 pointing to a single Asian origin, except Athabaskan‐speaking Arizona Navajos, whose 3RM1 frequency approaches that of Aleut‐Eskimos. There is no evidence at present of any significant local microevolution of 3RM1 in two testable prehistoric American Indian groups, although genetic drift had possibly occurred in a few series of 3RM1‐deficient southwestern U. S. prehistoric Western Pueblo Indians. No adaptive value can be found for 3RM1 in Indians. In prehistoric western U. S. Indians geographic frequency variation is only slightly greater than the very slight (and non‐significant) testable temporal variation. Three migrations from Asia seem best to explain New World 3RM1 frequency variation
Archaeology · Ethnology · Geography · Microevolution · Molar · Population · Prehistory · Sociology · South asia · Variation (astronomy · Demography · Dentistry · Evolution and Paleontology Studies · Forensic Anthropology and Bioarchaeology Studies · History · Medicine · Pleistocene-Era Hominins and Archaeology
Dental Anthropology of South Asian Populations
The First Americans
The Anthropology of Modern Human Teeth
Sinodonty and beyond
Peopling the Americas
Frequency of Three-Rooted Mandibular Permanent Molars in Anatolia from the Middle Ages to the Present
Dental variation among four prehispanic Mexican populations
Dental anthropology of Central-Southern, Iron Age Italy
Beringia and the global dispersal of modern humans
Paleobiology of the first Americans
Frequency and variation of three-rooted lower first permanent molars in precontact Easter Islanders and in Pre-Conquest Peruvians
Global Distribution of Marginal Accessory Tubercles of the Maxillary Premolars
Geographic patterns of Early Holocene New World dental morphological variation
Technical Note
A Morphofunctional Hypothesis for Selection on Edar V370A and Associated Elements of Sinodonty
Dahlberg Award Winner Dental morphological variation among six Pre-Hispanic South American populations with implications for the peopling of the New World
Populational Affinities of the Peruvian with Siberians and North Americans
Sinodonty, Sundadonty, and the Beringian Standstill model
Nonmetric morphological characters of deciduous teeth in Japan
In Defense of Amerind
Are the Biological Differences Between North American Indians and Eskimos Truly Profound? [and Comments and Reply]
Human Dental Remains From Early Neolithic Levels at Mehrgarh, Baluchistan
Retromolar foramen of the human mandible
Post‐pleistocene changes in tooth root and jaw relationships
Variation in the convexity of the human maxillary incisor labial surface
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Obituary
Evidence for long‐term migration on the Balkan Peninsula using dental and cranial nonmetric data
Patterns of modern human diversification
Observer error, dental wear, and the inference of new world sundadonty
Dental anthropology in the Ajpa
Taurodont, pyramidal and fused molar roots associated with other anomalies in a kindred
Mandibular premolar and second molar root morphological variation in modern humans
Intra‐ and interobserver concordance in classifying dental morphology
World variation in three-rooted lower second molars and implications for the hominin fossil record
Microevolution and the Skeletal Traits of a Middle Archaic Burial
Human teeth and fossils from the perspective of two manuals
The Buhl Burial
Comparative observations on the tooth root morphology of Gigantopithecus blacki
Mandibular molar root and pulp cavity morphology in Homo naledi and other Plio-Pleistocene hominins
Mandibular molar root morphology in Neanderthals and Late Pleistocene and recent Homo sapiens
Dental morphological evidence for biological continuity between the A-group and C-group periods in lower Nubia
Evolution of the dentition in prehistoric Ohio Valley Native Americans
| Unique citing works | 43 |
|---|---|
| Citations per year | 0,81 |
| Citation span | 1973 - 2023 (51) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 42 |