Cribrosphaerella circula

Classification: Mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Cribrosphaerella -> Cribrosphaerella circula
Sister taxa: C. circula, C. daniae, C. ehrenbergii, C. pelta, C. santacruzensis, C. sp.,

Distinguishing features: Small (4-6µm), sub-circular, Cribrosphaerella species


Citation: Cribrosphaerella circula (Risatti, 1973) Lees, 2007
Rank: Species
Basionym: Cribrosphaera circula Risatti, 1973
Notes & discussion: Not distinguished from C. ehrenbergi by many authors

Farinacci & Howe catalog pages: Cribrosphaera circula *

Distinguishing features: Small (4-6µm), sub-circular, Cribrosphaerella species

Size: 4-6 µm (accioding to Lees 2007)

Search data:
TagsLITHS: placolith, circular, CA: grill, plate, closed, V-UNITS: V-prominent, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 4->6µm;
Sources: original descriptions & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Verbeek 1977
First occurrence (base): within Late Santonian Substage (83.64-85.23Ma, base in Santonian stage). Data source: Verbeek 1977

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Cribrosphaerella


    Bukry, D. (1969). Upper Cretaceous coccoliths from Texas and Europe. The University of Kansas Paleontological Contributions. Article 51 (Protista 2): 1-79. gs

    Lees, J. A. (2007). New and rarely reported calcareous nannofossils from the Late Cretaceous of coastal Tanzania: outcrop samples and Tanzania Drilling Project Sites 5, 9 and 15. Journal of Nannoplankton Research. 29(1): 39-65. gs

    Risatti, J. B. (1973). Nannoplankton biostratigraphy of the Upper Bluffport Marl-Lower Prairie Bluff Chalk interval (upper Cretaceous) in Mississippi. In, Smith, L. A. & Hardenbol, J. (eds) Proceedings of the Symposium on Calcareous Nannofossils. Gulf Coast Section SEPM Publication, 8-57. gs

    Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 30(1): 39-56. gs


    Cribrosphaerella circula compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-2-2020

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