Zanolli, C;
Dean, MC;
Assefa, Y;
Bayle, P;
Braga, J;
Condemi, S;
Endalamaw, M;
... Macchiarelli, R; + view all
(2016)
Structural organization and tooth development in a Homo aff. erectus juvenile mandible from the Early Pleistocene site of Garba IV at Melka Kunture, Ethiopian highlands.
American Journal of Physical Anthropology
, 162
(3)
pp. 533-549.
10.1002/ajpa.23135.
Preview |
Text
Dean-M_structural organ_tooth_in a Homo aff_erectus_.pdf - Accepted Version Download (325kB) | Preview |
Abstract
Objectives The immature partial mandible GAR IVE from the c. 1.7 Ma old Garba IV site at Melka Kunture (Upper Awash Basin, Ethiopia), the earliest human representative from a mountain-like environment, represents one of the oldest early Homo specimens bearing a mixed dentition. Following its first description (Condemi, 2004), we extended the analytical and comparative record of this specimen by providing unreported details about its inner morphology, tooth maturational pattern and age at death, crown size, and tooth tissue proportions. Materials and Methods The new body of quantitative structural information and virtual imaging derives from a medical CT record performed in 2013. Results Compared to the extant human condition and to some fossil representatives of comparable individual age, the GAR IVE mandible reveals absolutely and relatively thick cortical bone. Crown size of the permanent lateral incisor and the canine fit the estimates of H. erectus s.l., while the dm2 and the M1 more closely approach those of H. habilis-rudolfensis. Molar crown pulp volumes are lower than reported in other fossil specimens and in extant humans. The mineralization sequence of the permanent tooth elements is represented four times in our reference sample of extant immature individuals (N = 795). Conclusions The tooth developmental pattern displayed by the immature individual from Garba IV falls within the range of variation of extant human populations and is also comparable with that of other very young early fossil hominins. Taken together, the evidence presented here for mandibular morphology and dental development suggest GAR IVE is a robust 2.5- to 3.5-year old early Homo specimen.
| Type: | Article |
|---|---|
| Title: | Structural organization and tooth development in a Homo aff. erectus juvenile mandible from the Early Pleistocene site of Garba IV at Melka Kunture, Ethiopian highlands |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/ajpa.23135 |
| Publisher version: | http://doi.org/10.1002/ajpa.23135 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Calabrian Stage; dentition; Homo aff. erectus; juvenile mandible; Melka Kunture |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1552861 |
Archive Staff Only
 |
View Item |
