Présence d'un Stromatopore calcitique dans le Trias de Turquie (nappes d'Antalya, Alakir Cay)

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Aragonitic skeletons are the major constituent in the Triassic fauna of the North Tethys (Madreporaria and Sponges). A few genera belonging to the Demospongea have however produced a high magnesium calcitic skeleton, with a granular microstructure. This biomineralization type, that was previously known only from sphinctozoan in the Triassic, has been discovered in a typically stromatoporoid architecture. The combination of such architectural, microstructural and mineralogic characters suggests phylogenetic relationships between this Triassic form and some stromatoporoids of the Jurassic or Cretaceous, characterized by a calcitic granular skeleton. © 1991.




Gautret, P. (1991). Présence d’un Stromatopore calcitique dans le Trias de Turquie (nappes d’Antalya, Alakir Cay). Geobios, 24(4), 417–421.

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