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Fig. 1. Standard dimorphic or trimorphic reproductive cycle in benthic, medium- to large-sized foraminifera according to Goldstein, 1999. Schizogeny, eventually repeated several times, may be widespread in larger foraminifera from oligotrophic habitats. Planktic foraminifera seem to have no dimorphic life cycle. Life cycles are linked in various ways to seasonal cycles. Example: Heterostegina depressa d'Orbigny, equatorial sections, Gulf of Aqaba, Red Sea (from Hottinger, 1977); (Hottinger, 2006; fig. 5 [1] CC/BY-NC-SA)


  • according to Hottinger (2006):

HAPLOID - having a reduced set (half of the total number) of chromosomes in the gamontic generation as compared to the full set (diploid) in the agamontic generation.

See also


Goldstein (1999), Foraminifera, a biological overview. In: Sen Gupta B.K. (ed.), Modern Foraminifera, Kluwer Academic Publishers, Dortrecht, p. 37-55.

Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de GĂ©ologie, Memoir 2, ISSN 1634-0744

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