Bown 2010 pl4-fig4.JPG
Bown 2010 pl4-fig5.JPG
Bown 2010 pl4-fig6.JPG
Short diagnosis: Small, elliptical placolith coccoliths with broad central-areas spanned by lattice-like grills that are dominated by longitudinal bars.
Bown 2010 pl4-fig4.JPG
Bown 2010 pl4-fig5.JPG
Bown 2010 pl4-fig6.JPGTaxonomy:
Farinacci & Howe catalog pages: Craticullithus clathrus *
Short diagnosis: Small, elliptical placolith coccoliths with broad central-areas spanned by lattice-like grills that are dominated by longitudinal bars.
Morphology remarks: The distal shield elements show distinctly kinked and stepped sutures. Approximately 12 lath-like bars make up the central grill with one to four central transverse bars and three to five longitudinal bars forming the rest of the structure.
Geological Range:
Last occurrence (top): within NP9 zone (55.86-57.21Ma, top in Ypresian stage). Data source: Bown, 2010
First occurrence (base): within NP9 zone (55.86-57.21Ma, base in Thanetian stage). Data source: Bown, 2010
Plot of occurrence data:
Bown, P.R., (2005). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research, 27(1): 21-95. Bown, P.R., (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research, 31: 11-38.References:
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Craticullithus clathrus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-8-2017
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