Nannotax Enabling nannofossil research

Description: Large Gephyrocapsa species with bridge steeply inclined (50-30°) to the long axis, central opening narrow or nearly closed.

Size: Coccolith length 5.5 - 7µm. (the minimum length of 5.5µm is a rather artificial cut-off but useful for biostratigraphy)

Remarks:

Range: Early Pleistocene, LAD marks base of the small Gephyrocapsa zone.

Synonymy

• Gephyrocapsa caribbeanica Boudreaux & Hay, in Hay et al 1967,p.447, pls.12-13/1-4; Samtleben 1980, p.110, pl.14/9-14, Takayama & Sato 1986, p.691.
• Gephyrocapsa lumina Bukry 1973 p.678, pl.3/1-4.
• Gephyrocapsa spp. A & B Matsuoka and Okada 1990, p.260, pl.1/17-18, 2/1-11
• Gephyrocapsa spp. 1 & 2 Rio 1982, p.329, pl.2/1-12.