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Pontosphaera japonica

Edited by Jeremy Young on Wed, 09/03/2011 - 18:48

Pontosphaera japonica (Takayama, 1967) Nishida, 1971 [Discolithina]

Description: Rim flush with central-area pores very small (<0.1μm) often infilled during diagenesis.

Remarks:

Original description:

Discolithina japonica 050278.jpgDiscolithina japonica 050279.jpg

2-10japonica.JPGPont_jap_217-82a.JPGPont_jap_217-82b.JPGPont203-36 (471-3-36)NN14-15.JPG

Synonym: Discolithus millepuncta Gartner, 1967.

Geological Time Data
Geological Time Periods: 
NN21
Paleogene
Biblio Reference: 
Young, JR.  1998.  Neogene. Calcareous nannofossil biostratigraphy. :225-265.
Scratchpads developed and conceived by: Vince Smith, Simon Rycroft, Dave Roberts, Ben Scott...