Pontosphaera perforomarginata Bown, 2005

Pontosphaera perforomarginata Bown, 2005

Description: Large elliptical Pontosphaera with a plate that is pierced by small pores and two central longitudinal holes that define a conjunct bar. The plate thickens towards the edge but the rim is difficult to distinguish in XPL.

Remarks:

Holotype: Paratype:

Pontosphaera perforomarginata pl15-31.JPG Pontosphaera perforomarginata pl15-32.JPGPontosphaera perforomarginata pl15-33.JPG

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