FOSSILIA - Reports in Palaeontology

How did vertebrates sharpen their teeth? A new perspective in bioapatite analysis

 

Martina Savioli¹, Annalisa Ferretti¹, Luca Medici² & Daniele Malferrari¹

¹ Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via Campi 103, I-41125, Modena, Italy; martina.savioli@unimore.it; annalisa.ferretti@unimore.it; daniele.malferrari@unimore.it
M. Savioli: https://orcid.org/0000-0001-6358-4320
A. Ferretti: https://orcid.org/0000-0002-1173-8778
D. Malferrari: https://orcid.org/0000-0002-0879-1703
² Istituto di Metodologie per l’Analisi Ambientale (IMAA-CNR), C. da S. Loja-Zona Industriale, I-85050, Tito Scalo, Potenza, Italy; luca.medici@imaa.cnr.it

L. Medici: https://orcid.org/0000-0002-0879-1703

 

How to cite: Savioli et al. (2018). How did vertebrates sharpen their teeth? A new perspective in bioapatite analysis. Fossilia, Volume 2018: 41-43. https://doi.org/10.32774/FosRepPal.20.1810.134143

Bullet-Points Abstract

  • A new approach for the analysis of bioapatite.
  • LA-ICP-MS was used to characterized samples and standards.
  • “In-house” matrix matched standard were prepared to optimize chemical analyses.

Keywords: bioapatite; LA-ICP-MS; Carcharias taurus tooth.

 
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Fig. 1. The curves show a comparison between P (top) and Ca (bottom) from different standards, pure hydroxyapatite, and a Carcharias taurus tooth. Assuming that in Carcharias taurus tooth ("Sample" in the figure legend) the P and Ca content is that of a pure hydroxyapatite (about 40% Ca, 18.5% P), we can observe that the signal from Bone Meal does not match those of the tooth,
whereas signals from Bone Ash and in house made standards are both comparable to that of the tooth. cps, counts per second;
ms, milliseconds.

 

Cited References