期刊
INTERNATIONAL JOURNAL OF OSTEOARCHAEOLOGY
卷 33, 期 2, 页码 355-360出版社
WILEY
DOI: 10.1002/oa.3200
关键词
carbon; isobiography; nitrogen; postclassical antiquity; stable isotopes analysis; sulfur
This exploratory study proposes an original method for investigating intra-life history by analyzing the isotopic composition of dental tissue from birth to death. The study focuses on an elderly woman from Longobard Italy who underwent cranial surgery. The isotopic analysis provides insights into her diet, mobility, health, and physiological stress throughout her life. This research highlights the importance of analyzing complete dental sequences to understand ancient populations' intra-life histories.
This exploratory study proposes an original intra-life history investigation through sequential analysis of the isotopic composition of carbon, nitrogen, and sulfur (CNS) on both primary and secondary dentin of a tooth (M1). We focus on an elderly woman from Longobard Italy (6th to 8th c. CE), who showed an unprecedented case of cranial surgery, presented in a companion paper by Micarelli and colleagues. Sequential stable CNS isotope composition of first molar dentin collagen allows us to infer diet, mobility, health, and physiological stress between approximately 3 months after birth to 9.5 years old (primary dentin) and between early adulthood until death (secondary dentin). Isotopic results on primary dentin highlight the following: (i) a long weaning period (ending at approximately 4 years), followed by (ii) a specific diet, including the contribution of C-4 crops in early childhood (approximately 5.5 years), possibly concomitant with mobility. While secondary dentin shows a generally homogeneous diet during adulthood, the longitudinal analysis provided information on specific stresses that likely occurred in periods of difficult health conditions. This work emphasizes the importance of measuring complete dentin sequences (including secondary when present) for isotopic analysis to broaden intra-life histories in ancient populations.
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