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Oolithotus antillarum
Cenozoic Taxa
Oolithotus antillarum
Edited by Jeremy Young on Wed, 09/03/2011 - 15:57Oolithotus antillarum (Cohen 1964) Reinhardt, in Cohen & Reinhardt 1968 [Discolithus]
Description: Small form, coccoliths 3-6μm; strongly asymmetric; proximal shield much smaller than distal, with sutures complexly kinked becoming pseudo-bicyclic; usually with deep, narrow depression on distal surface.
Remarks:
Synonym: O. fragilis var. cavum (Okada & McIntyre 1977) Jordan & Young 1990 [O. fragilis ssp. cavum] - see Kleijne (1993) for discussion, although our observations indicate wider size range for the species.
Original description:
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Neogene: Oolithotus; Oolithotus antillarum
Oolithotus
Edited by Jeremy Young on Wed, 09/03/2011 - 15:56Genus Oolithotus Reinhardt in Cohen & Reinhardt 1968
Description: Cells non-motile, but coccosphere asymmetrical with an opening. Coccoliths also asymmetrical, distal shield is typically weakly elliptical but with tube and proximal shield offset from centre, otherwise very like Calcidiscus. Proximal shield small, monocyclic.
Remarks: Predominantly deep-photic.
Type species: Oolithotus antillarum.
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Neogene: Oolithotus; Oolithotus antillarum
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