Thecatus varolii

Classification: Mesozoic -> Holococcoliths -> Rarer genera -> Thecatus -> Thecatus varolii
Sister taxa: T. varolii, T. sp.,


Citation: Thecatus varolii Lees, 2007
Rank: Species

Farinacci & Howe catalog pages: Thecatus varolii *

Morphology remarks: "Diagnosis: As for the genus. This species is small." [Lees 2007]

Size: Holotype dimensions: H = 3.08μm, W = 3.52μm.

Search data:
TagsLITHS: holococcolith, elliptical, quadrate, hollow,
MetricsLith size: 3->5µm;
Sources: original description & 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 UC6b subzone (93.55-93.73Ma, top in Turonian stage). Data source: Lees 2007 (original description)
First occurrence (base): within UC6b subzone (93.55-93.73Ma, base in Turonian stage). Data source: Lees 2007 (original description)

Plot of occurrence data:

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


    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

    Perez-Rodriguez, I., Lees, J. A., Larasoaña, J. C., Arz, J. A. & Arenillas, I. (2012). Planktonic foraminiferal and calcareous nannofossil biostratigraphy and magnetostratigraphy of the uppermost Campanian and Maastrichtian at Zumaia, northern Spain. Cretaceous Research. 37: 100-126. gs


    Thecatus varolii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 9-4-2020

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