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Coiling ratios and other variations of Globigerina pachyderma (Ehrenberg, 1861) and the stratigraphical significance in the neogene deposits of the Antwerpen area (Belgium)
De Meuter, F.J.C.; Laga, P. G. (1970). Coiling ratios and other variations of Globigerina pachyderma (Ehrenberg, 1861) and the stratigraphical significance in the neogene deposits of the Antwerpen area (Belgium). Bulletin de la Société Belge de Géologie, de Paléontologie et d'Hydrologie = Bulletin van de Belgische Vereniging voor Geologie, Paleontologie en Hydrologie, 79(2). [S.n.]: Brussel. 175-184 pp.
Part of: Bulletin van de Belgische Vereniging voor Geologie, Paleontologie en Hydrologie = Bulletin de la Société Belge de Géologie, de Paléontologie et d'Hydrologie. Société belge de Géologie, Paléontologie et d'Hydrologie = Belgische Vereniging voor Geologie, Paleontologie en Hydrologie: Bruxelles. ISSN 0037-8909
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Keyword
    Globigerina pachyderma (Ehrenberg, 1861) [WoRMS]
Authors  Top 
  • De Meuter, F.J.C.
  • Laga, P. G.
Abstract
    The planktonic foraminifer Globigerina pachyderma (EHRENBERG, 1861) occurs in the upper Miocene and Plio-Pleistocene deposits of the Antwerpen area. The authors state a change in the dominantly coiling direction of this foraminifer, accompanied with other morphological variations. Thestratigraphical level of this change coincides with the admitted Mio-Pliocene boundary in this area. According to several authors, it may be attributed to climatological oscillations.
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