ArticleProceedings of the National Academy of Sciences of the United States of America2026
When collagen fails: Zinc isotopes unlock Sumerian lifeways in southern Mesopotamia.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
- When collagen fails: Zinc isotopes unlock Sumerian lifeways in southern Mesopotamia.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
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8 authors.
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Abstract
Reconstructing past lifeways and diets is essential to understanding the emergence of urban societies. However, in what are now arid environments like southern Mesopotamia, poor collagen preservation has long hampered direct isotopic analysis of trophic levels. This limitation has left key gaps in our understanding of subsistence in one of the world's earliest urban heartlands. Here, we apply zinc isotope analysis to human and faunal dental enamel from the third-millennium BCE site of Abu Tbeirah (Iraq), integrating δ
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