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Mise en évidence de rythmicité saisonnière dans la coquille des huîtres fossiles Crassostrea aginensis Tournouer, 1914 (Aquitanien) et Ostrea bellovacina Lamarck, 1806 (Thanétien). Approche par cathodoluminescence et par sclérochronologie
Lartaud, F.; Langlet, D.; De Rafelis, M.; Emmanuel, L.; Renard, M. (2006). Mise en évidence de rythmicité saisonnière dans la coquille des huîtres fossiles Crassostrea aginensis Tournouer, 1914 (Aquitanien) et Ostrea bellovacina Lamarck, 1806 (Thanétien). Approche par cathodoluminescence et par sclérochronologie. Géobios 39(6): 845-852. dx.doi.org/10.1016/j.geobios.2005.11.001
In: Géobios. Association Européenne de Paléontologie: Lyon. ISSN 0016-6995, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 279532 [ OMA ]

Keywords
    Thanetian; Bivalvia [WoRMS]; Crassostrea aginensis; Ostrea bellovacina; Marine
Author keywords
    oyster; shell; biomineralization; cathodoluminescence; sclerochronology

Authors  Top 
  • Lartaud, F.
  • Langlet, D.
  • De Rafelis, M.
  • Emmanuel, L.
  • Renard, M.

Abstract
    Cathodoluminescence study of oyster shell growth modalities allows to propose a new method of investigation, which is less dependent on the conditions of preservation of fossilized shells conditions that the classical sclerochronological approach. Analysis by cathodoluminescence of sections of the hinge under the ligamental area of fossil oyster shells Crassostrea aginensis Toumouer, 1914 (Aquitanian) and Ostrea bellovacina Lamarck, 1806 (Thanentian) allowed to calculate the age based on the seasonal growth of shells, whereas the none preservation of the morphological marks of growth made a sclerochronologic analysis impossible. Moreover, this part of the shell seems the most reliable site to carry out geochemical analyses to characterize the record of palaeoenvironmental data by the biomineralization process of these organisms.

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