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Matrice organique de la coquille et position phylétique de Neopilina galatheae (Mollusques, Monoplacophores)
Poulicek, M.; Jeuniaux, Ch. (1981). Matrice organique de la coquille et position phylétique de Neopilina galatheae (Mollusques, Monoplacophores). Ann. Soc. R. Zool. Bel. 111(1-4): 143-150
In: Annales de la Société Royale Zoologique de Belgique = Annalen van de Koninklijke Belgische Vereniging voor Dierkunde. Société Royale Zoologique de Belgique: Bruxelles. ISSN 0771-5528, more
Peer reviewed article  

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Keywords
    Monoplacophora [WoRMS]; Neopilina galatheae Lemche, 1957 [WoRMS]; Marine

Authors  Top 
  • Poulicek, M., more
  • Jeuniaux, Ch.

Abstract
    The interest of the chemical composition of molluscan shells in phylogenetical considerations is illustrated by the case of Neopilina.Chemical analyses of organic matrix of the different shell layers of Neopilina galatheae revealed the presence of chitin in nacrous and prism layers. Chitin is lacking in periostracum. The proportion of chitin is low (about 0.3 % of shell decalcified weight). Both microstructural and chemical caracteristics are in favor of a closest relationship of Monoplacophora with primitive Conchifera rather than with Amphineura.

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