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The mode of life of Devonian entomozoacean ostracods and the Myodocopid Mega-Assemblage proxy for hypoxic events
Casier, J.-G. (2004). The mode of life of Devonian entomozoacean ostracods and the Myodocopid Mega-Assemblage proxy for hypoxic events. Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 74-suppl.: 73-80
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Aardwetenschappen = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre. KBIN: Brussel. ISSN 0374-6291, more
Peer reviewed article  

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Keywords
    Devonian; Entomozoacea; Ostracoda [WoRMS]; Marine
Author keywords
    Ostracods, Entomozoacea, Devonian, Mode of life, Palaeoecology

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  • Casier, J.-G., more

Abstract
    The mode of life of entomozoacean ostracods, which belong to the Myodocopida, is controversial. It is generally assumed that they are pelagic, more precisely planktonic or nektoplanktonic, and that their presence is indicative of deep environments. However, a purely morphological study is not sufficient to determine their mode of life. Their relationship with the substrata and other animals, and their response to major environmental changes must be taken into account. These data confirm a swimming mode of life for all the entomozoaceans, and suggest that a nektobenthic lifestyle, in poorly oxygenated, but not necessarily deep, environments is more probable than a planktonic mode of life. The presence of a Myodocopid Mega-Assemblage proxy for hypoxic events, seems more useful that the differentiation of an "Entomozoid ecotype".

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