Umbellosphaera tenuis

Edited by Lyndsey on Thu, 10/03/2011 - 13:42

Umbellosphaera tenuis (Kamptner, 1937) Paasche in Markali and Paasche, 1955 [Coccolithus]

Description: Coccoliths convex outwards, relatively heavily calcified, with ridges on the distal surface.

Remarks: This form is substantially more robust than U. irregularis and is much more common in the fossil record.

Original description:

Synonyms:

Geological Time Data

Geological Time Periods:

NN21

NN15

Biblio Reference:

Young, JR. 1998. Neogene. Calcareous nannofossil biostratigraphy. :225-265.

Notes on occurrence information:

Questions occur over the beginning of this species range.

Nannotax Enabling nannofossil research