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Coccoliths with helical flange, sub-groups can be recognised based on presence/absence of a disjunct bar, bar orientation, flange shape, etc.

SYNONYM: Helicopontosphaera

Neogene species have been classified by Young (1998) into the following groups:
Helicosphaera ampliaperta group - with open central area
Helicosphaera carteri group
Helicosphaera recta group - with inversely oriented bar and flange abruptly terminated
Helicosphaera walbersdorfensis group