Nannotax3 - ntax_cenozoic - Cyclagelosphaera sp. Nannotax3 - ntax_cenozoic - Cyclagelosphaera sp.

Cyclagelosphaera sp.


Classification: ntax_cenozoic -> Mesozoic Survivors -> Watznaueriaceae -> Cyclagelosphaera -> Cyclagelosphaera sp.
Sister taxa: C. alta, C. colorata, C. margerelii, C. reinhardtii, C. rotaclypeata, C. sp.

Taxonomy:

Citation: Cyclagelosphaera sp.
taxonomic rank: generic level id

Distinguishing features:
Parent taxon (Cyclagelosphaera): Circular watznaueriacean placolith coccoliths.
This taxon: Specimens which cannot be assigned to any established species

Farinacci & Howe catalog pages:

Search data:
Lith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP10 zone (54.17-55.86Ma, top in Ypresian stage). Data source: same as genus
First occurrence (base): within NJ11 zone (165.71-168.69Ma, base in Bajocian stage). Data source: same as genus

Plot of occurrence data:

References:

Bown, P. R., Kim, H. & Gibbs, S. J. (2023). Danian calcareous nannofossil evolution and taxonomy with focus on sites from the North Atlantic Ocean (IODP Expedition 342, Sites U1403 and U1407). Journal of Nannoplankton Research. 41(2): 110-157. gs O

Mai, H., von Salis, K., Willems, H. & Romein, A. J. T. (1997). Fossil coccospheres from the K/T boundary section from Geulhemmerberg, The Netherlands. Micropaleontology. 43: 281-303. gs

Pospichal, J. J. & Bralower, T. J. (1992). Calcareous Nannofossils Across the Cretaceous/Tertiary Boundary, Site 761, Northwest Australian Margin. Proceedings of the Ocean Drilling Program, Scientific Results. 122: 735-752. gs

Varol, O. (1998). Palaeogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 200-224. gs


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Cyclagelosphaera sp. compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-4-2024

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=407 Go to Archive.is to create a permanent copy of this page - citation notes
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