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Pontosphaera pulchra (Deflandre in Deflandre & Fert, 1954) Romein, 1979

Edited by Lyndsey on Fri, 11/03/2011 - 15:34

Pontosphaera pulchra (Deflandre in Deflandre & Fert, 1954) Romein, 1979

Description: The plate is scalloped towards its outer edge and pierced by two holes, defining a transverse bar. The scalloping is defined by narrow radial ridges and furrows, which run inwards towards the centre.

Remarks: Like Pontosphaera pectinata but the two central holes are larger.

Geological Time Data
Geological Time Periods: 
NP14
NP11
Biblio Reference: 
Varol, O.  1998.  Palaeogene. Calcareous nannofossil biostratigraphy. :200-224.
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