Taxonomic and phylogenetic aspects of the shell ultrastructure of nine Cretaceous rhynchonellide brachiopod genera

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概要

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• The shell ultrastructure of nine Cretaceous rhynchonellide brachiopod genera was studied using SEM with the purpose of finding additional criteria for the taxonomy and phylogeny of Late Cretaceous rhynchonellides. The genus Orbirhynchia is characterized by a coarse fibrous basiliolidine type structure of the secondary shell. The genera Cyclothyris, Cretirhynchia, Septatoechia, Belbekella, Lamellaerhynchia, Almerarhynchia, Burrirhynchia and Grasirhynchia have a fine fibrous rhynchonellidine type structure. An outline of some diagnostic characteristics for each genus is presented. Some diagenetic alterations of the shell, such as silicification and recrystallization are also discussed.

• 日本古生物学会の論文
• 2001-12-31

著者

• Motchurova‐dekova N

  National Museum Of Natural History Sofia Bgr

• MOTCHUROVA-DEKOVA NEDA

  Department of Earth and Planetary Science, University of Tokyo

関連論文

• Taxonomic and phylogenetic aspects of the shell ultrastructure of nine Cretaceous rhynchonellide brachiopod genera

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