Nannotax

Description: Coccoliths with structure similar to those of Emiliania, but with conjunct bridge, formed from inner tube-elements spanning central area; shields usually solid, i.e. without slits between the elements.

Remarks:

Key references: Samtleben (1980), Bollmann (1997).

Life-cycle: Diploid phase non-motile producing heterococcoliths. Haploid phase motile, non-calcifying.

Range: Early Pliocene (ca. NN14) to Recent.

Type Species: Gephyrocapsa oceanica Kamptner 1943