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Sphenolithus anarrhopus Bukry & Bramlette 1969

Edited by Lyndsey on Fri, 11/03/2011 - 12:30

Sphenolithus anarrhopus Bukry & Bramlette 1969

Description: Medium sized (height 6.2-9.2 µm) with short to relatively long spine that is slightly asymmetrical and dark at 0°. Square-shaped base with near-equidimensional quadrants and deep spine insertion.

Remarks: Similar to Sphenolithus radians but the spine is completely dark at 0°.


Geological Time Data
Geological Time Periods: 
NP10
NP6
Biblio Reference: 
Varol, O.  1998.  Palaeogene. Calcareous nannofossil biostratigraphy. :200-224.
Scratchpads developed and conceived by: Vince Smith, Simon Rycroft, Dave Roberts, Ben Scott...