Calcite orientations and composition ranges within teeth across Echinoidea

Stuart R Stock*, Konstantin Ignatiev, Peter L. Lee, Jonathan D. Almer

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Sea urchin's teeth from four families of order Echinoida and from orders Temnopleuroida, Arbacioida and Cidaroida were studied with synchrotron X-ray diffraction. The high and very high Mg calcite phases of the teeth, i.e. the first and second stage mineral constituents, respectively, have the same crystallographic orientations. The co-orientation of first and second stage mineral, which the authors attribute to epitaxy, extends across the phylogenic width of the extant regular sea urchins and demonstrates that this is a primitive character of this group. The range of compositions Δx for the two phases of Ca1-xMgxCO3 is about 0.20 or greater and is consistent with a common biomineralization process.

Original languageEnglish (US)
Pages (from-to)48-52
Number of pages5
JournalConnective tissue research
Volume55
Issue numberSUPPL. 1
DOIs
StatePublished - Jan 1 2014

Fingerprint

Sea Urchins
Calcium Carbonate
Minerals
Tooth
Biomineralization
Synchrotrons
Chemical analysis
Epitaxial growth
X-Ray Diffraction
X ray diffraction

Keywords

  • Biomineralization
  • Calcite
  • Sea urchin
  • Synchrotron radiation
  • Teeth
  • X-ray diffraction

ASJC Scopus subject areas

  • Rheumatology
  • Biochemistry
  • Orthopedics and Sports Medicine
  • Molecular Biology
  • Cell Biology

Cite this

Stock, Stuart R ; Ignatiev, Konstantin ; Lee, Peter L. ; Almer, Jonathan D. / Calcite orientations and composition ranges within teeth across Echinoidea. In: Connective tissue research. 2014 ; Vol. 55, No. SUPPL. 1. pp. 48-52.
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Calcite orientations and composition ranges within teeth across Echinoidea. / Stock, Stuart R; Ignatiev, Konstantin; Lee, Peter L.; Almer, Jonathan D.

In: Connective tissue research, Vol. 55, No. SUPPL. 1, 01.01.2014, p. 48-52.

Research output: Contribution to journalArticle

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AU - Lee, Peter L.

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