Home › nanno-taxonomy › Zygodiscales › Helicosphaeraceae

Revision of Helicosphaeraceae from Mon, 19/11/2007 - 17:19

Thu, 31/07/2008 - 15:39 — Anonymous
helico terms
Citation: 
FAMILY HELICOSPHAERACEAE BLACK, 1971

Coccospheres ellipsoidal with a prominent flagellar opening. Coccoliths are arranged spirally round the coccosphere and may vary slightly in size and shape from the antapex to the flagellar pole.
Coccolith structure - Outer rim (V-units) of the coccoliths are modified into a helical flange, ending in a wing or spike. R-units form the baseplate and extend to form blanket of small elements. Central-area bars may be conjunct, disjunct or absent.

Post new comment

The content of this field is kept private and will not be shown publicly.
Scratchpads developed and conceived by: Vince Smith, Simon Rycroft & Dave Roberts