Age estimation in fossil hominins: comparing dental development in early Homo with modern humans
Abstract
BACKGROUND: Previous studies have used molar tooth eruption as a comparative marker of maturation in early fossil hominins. However, tooth eruption and tooth formation are independent maturational processes. AIM: To determine whether estimates of age for entering a stage of dental development in three early hominin fossils fell within the distribution of a modern human sample. METHODS: This study used a comparative model of dental development to identify the stages of dental development most likely to provide information about length of the growth period in early fossil hominins. Age estimates for stages of dental development in fossils were superimposed onto a normal distribution of the same radiographically defined stages derived from a sample of 6540 children of diverse geographical origin. RESULTS: Both within the dentition of S7-37, from Sangiran, Java, but also for stages of two other specimens (KNM-WT 15000 from Kenya and StW 151 from South Africa), all age estimates for later stages of tooth formation fell within the modern sample range. CONCLUSIONS: A pattern appears to exist in early Homo where, both within and between developing dentitions, age estimates for stages of P4, M2 and M3 tooth formation fell consistently among the more advanced individuals of the modern human sample.
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A Homo erectus juvenile aged between 7.6 and 8.8 years (KNM WT 15000) shows evidence of both advanced dental development and earlier attainment of body mass and stature than is typical of modern humans of a similar age.
“A Homo erectus juvenile aged between 7.6 to 8.8 years (KNM WT 15000) shows evidence of both advanced dental development and earlier attainment of body mass and stature than is typical of modern humans of a similar age (22,27).”
From The growth pattern of Neandertals, reconstructed from a juvenile skeleton from El Sidrón (Spain) (2017) · cites this paper as [22]
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- Authors
- Dean, M. C., & Liversidge, H. M.
- Affiliations
- Queen Mary University of London (GB)
- ORCID
- Liversidge, Helen M.
- Venue
- Annals of Human Biology
- Publisher
- Informa UK Limited
- Published
- 2015-07-04
- Volume
- 42
- Issue
- 4
- Pages
- 415-429
- ISSN
- 0301-4460 (ISSN-L)
- 1464-5033
- OpenAlex
- W2215959973
- Cited by
- 32
- References
- 71
- Citations by year
- 2026: 2 · 2024: 4 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 6 · 2018: 6 · 2017: 4 · 2016: 2
- FWCI
- 16.74
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Annals of Human Biology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Anthropology › Pleistocene-Era Hominins and Archaeology
- Social Sciences › Arts and Humanities › Archeology › Forensic Anthropology and Bioarchaeology Studies
- Physical Sciences › Mathematics › Geometry and Topology › Morphological variations and asymmetry
- Keywords
- age estimation, fossil hominins, early Homo, tooth development, tooth eruption, growth period
- MeSH terms
- Age Determination by Teeth, Animals, Fossils, Humans, Male, Models, Biological, Tooth, Hominidae
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