Calculites axosuturalis


Classification: Mesozoic -> Holococcoliths -> Common genera -> Calculites -> Calculites axosuturalis
Sister taxa: C. favosus, C. anfractus, C. axosuturalis, C. obscurus, C. ovalis, C. rosalyniae, C. additus, C. cenomanicus, C. cyclops, C. juliae, C. maghredaswampensis, C. paulus, C. percernis, C. proscissus, C. turonicus, C. sarstedtensis, C. suturus, C. sp.,

Distinguishing features: Sutures nearly aligned with the axes of the ellipse, low birefringence. May have a stem.


Taxonomy:

Citation: Calculites axosuturalis Bergen in Bralower & Bergen, 1998
Rank: Species

Farinacci & Howe catalog pages: Calculites axosuturalis *

Distinguishing features: Sutures nearly aligned with the axes of the ellipse, low birefringence. May have a stem.

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: process, closed, V-UNITS: V-prominent, DETAILS: ca_conjunct, rim-unicyclic,
MetricsLith size: 6->9┬Ám; Segments: 4->4;
Sources: 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 Turonian Stage (89.77-93.90Ma, top in Turonian stage). Data source: Bergen in Bralower & Bergen, 1998 (original description)
First occurrence (base): within Turonian Stage (89.77-93.90Ma, base in Turonian stage). Data source: Bergen in Bralower & Bergen, 1998 (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: Calculites

    References:

    Bralower, T. J. & Bergen, J. A. (1998). Cenomanian-Santonian calcareous nannofossil biostratigraphy of a transect of cores drilled across the Western Interior Seaway. In, Dean, W. E. & Arthur, M. A. (eds) Stratigraphy and paleoenvironments of the Cretaceous Western Interior Seaway. SEPM Concepts in Sedimentology and Paleontology. -. 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


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    Calculites axosuturalis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-4-2020

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10166 Go to Archive.is to create a permanent copy of this page - citation notes



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