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Morphological and chemical evidence for cyclic bone growth in a fossil hyaena

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Abstract

Trace element inventories are known to correlate with specific histological structures in bone, reflecting organismal physiology and life histories. By studying trace elements in fossilised bone, particularly in individuals with cyclic bone growth (alternating fast/slow bone deposition), we can improve our understanding of the physiology of extinct organisms. In this study we present the first direct comparison between optical histology (bone tissue identification) and synchrotron-based chemical mapping, quantification, and characterisation of trace elements (biochemistry) within cyclic growth tissues, in this case within bones of a cave hyaena (Crocuta crocuta spelaea). Results show distributions of zinc, an element strongly associated with active ossification and bone growth, correlating with (1) fast-growing tissue of zonal bone (cyclic growth) in an extinct hyaena and (2) secondary osteons (remodelling) in both extant and extinct hyaena. Concentrations and coordination chemistry of zinc within the fossil sample are comparable to those seen in extant bone suggesting that zinc is endogenous to the sample and that the chemistry of bone growth has been preserved for 40 ka. These results demonstrate that the study of trace elements as part of the histochemistry has wide utility for reconstructing growth, diet and other lifestyle factors in archaeological and fossil bone.

Graphical abstract: Morphological and chemical evidence for cyclic bone growth in a fossil hyaena

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Publication details

The article was received on 26 Sep 2018, accepted on 11 Oct 2018 and first published on 18 Oct 2018


Article type: Paper
DOI: 10.1039/C8JA00314A
Citation: J. Anal. At. Spectrom., 2018, Advance Article
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    Morphological and chemical evidence for cyclic bone growth in a fossil hyaena

    J. Anné, R. A. Wogelius, N. P. Edwards, A. van Veelen, M. Buckley, W. I. Sellers, U. Bergmann, D. Sokaras, R. Alonso-Mori, V. L. Harvey, V. M. Egerton and P. L. Manning, J. Anal. At. Spectrom., 2018, Advance Article , DOI: 10.1039/C8JA00314A

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