Nannotax3 - ntax_cenozoic - Blackites inflatus

Citation: Blackites inflatus (Bramlette & Sullivan, 1961) Kapellos & Schaub, 1973

Basionym: Rhabdosphaera inflata Bramlette & Sullivan, 1961

Distinguishing features:
Parent taxon (B. inflatus group): Spine inflated with maximum width above base, many with conspicous bulge
This taxon: Rhabdolith with a tall, hollow, ampulliform spine that broadens to a maximum width and then tapers gradually in the upper portion; the outer surface is serrated. The width of the spine is variable and typically the same as the coccolith but considerable taller (x4-7). The rim is distinctly convex and relatively broad.

Geological Range:
Last occurrence (top): within NP15a subzone (45.49-46.29Ma, top in Lutetian stage). Data source: Perch-Nielsen 1985b
First occurrence (base): within NP14b subzone (46.29-47.84Ma, base in Lutetian stage). Data source: Perch-Nielsen 1985

References:

Bown, P. R. & Newsam, C. (2017). Calcareous nannofossils from the Eocene North Atlantic Ocean (IODP Expedition 342 Sites U1403–1411). Journal of Nannoplankton Research. 37(1): 25-60. gs O

Bown, P. R. (2005d). 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. gs O

Bramlette, M. N. & Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(2): 129-188. gs

Kapellos, C. & Schaub, H. (1973). Zur Korrelation von Biozonierung mit Grossforaminiferen und Nannoplankton im Paläogen der Pyrenaen. Eclogae Geologicae Helvetiae. 66: 687-737. gs O

Müller, C. (1979). Calcareous nannofssils from the North Atlantic (Leg 48). Initial Reports of the Deep Sea Drilling Project. 48: 589-639. gs

Perch-Nielsen, K. (1977). Albian to Pleistocene calcareous nannofossils from the Western South Atlantic, DSDP Leg 39. Initial Reports of the Deep Sea Drilling Project. 39: 699-823. gs O

Perch-Nielsen, K. (1985). Cenozoic calcareous nannofossils. In, Bolli, H. M., Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge (1): 427-555. gs

Salomon, R. (1999). The Calcite Palace. Website - https://ina.tmsoc.org/galleries/CalcitePalace/index.htm. -. gs

Self-Trail, J. (2011). Paleogene Calcareous Nannofossils of the South Dover Bridge core, Southern Maryland (USA). Journal of Nannoplankton Research. 32(1): 1-28. gs

Steurbaut, E. & Nolf, D. (2021). The Mont-des-Récollets section (N France): a key site for the Ypresian-Lutetian transition at mid-latitudes – reassessment of the boundary criterion for the base-Lutetian GSSP. Geodiversitas. 43(11): 311-363. gs

Varol, O. (1989b). Eocene calcareous nannofossils from Sile (northwest Turkey). Revista Española de Micropaleontología. 21: 273-320. gs

Blackites inflatus

References:

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