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dc.contributor.authorGreen, Daniel R
dc.contributor.authorGreen, Gregory M
dc.contributor.authorColman, Albert S
dc.contributor.authorBidlack, Felicitas B
dc.contributor.authorTafforeau, Paul
dc.contributor.authorSmith, Tanya M
dc.date.accessioned2017-11-16T22:17:35Z
dc.date.available2017-11-16T22:17:35Z
dc.date.issued2017
dc.identifier.issn1932-6203
dc.identifier.doi10.1371/journal.pone.0186391
dc.identifier.urihttp://hdl.handle.net/10072/353075
dc.description.abstractThe progressive character of tooth formation records aspects of mammalian life history, diet, seasonal behavior and climate. Tooth mineralization occurs in two stages: secretion and maturation, which overlap to some degree. Despite decades of study, the spatial and temporal pattern of elemental incorporation during enamel mineralization remains poorly characterized. Here we use synchrotron X-ray microtomography and Markov Chain Monte Carlo sampling to estimate mineralization patterns from an ontogenetic series of sheep molars (n = 45 M1s, 18 M2s). We adopt a Bayesian approach that posits a general pattern of maturation estimated from individual- and population-level mineral density variation over time. This approach converts static images of mineral density into a dynamic model of mineralization, and demonstrates that enamel secretion and maturation waves advance at nonlinear rates with distinct geometries. While enamel secretion is ordered, maturation geometry varies within a population and appears to be driven by diffusive processes. Our model yields concrete expectations for the integration of physiological and environmental signals, which is of particular significance for paleoseasonality research. This study also provides an avenue for characterizing mineralization patterns in other taxa. Our synchrotron imaging data and model are available for application to multiple disciplines, including health, material science, and paleontological research.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherPublic Library of Sciences
dc.relation.ispartofpagefrome0186391-1
dc.relation.ispartofpagetoe0186391-16
dc.relation.ispartofissue10
dc.relation.ispartofjournalPLoS One
dc.relation.ispartofvolume12
dc.subject.fieldofresearchBiological (physical) anthropology
dc.subject.fieldofresearchArchaeological science
dc.subject.fieldofresearchcode440103
dc.subject.fieldofresearchcode430101
dc.titleSynchrotron imaging and Markov Chain Monte Carlo reveal tooth mineralization patterns
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.description.versionVersion of Record (VoR)
gro.description.notepublicPage numbers are not for citation purposes. Instead, this article has the unique article number of e0186391
gro.rights.copyright© 2017 Green et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
gro.hasfulltextFull Text
gro.griffith.authorSmith, Tanya M.


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