Nannotax3 - ntax_cenozoic - Cyclagelosphaera rotaclypeata Nannotax3 - ntax_cenozoic - Cyclagelosphaera rotaclypeata

Cyclagelosphaera rotaclypeata


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

Taxonomy:

Citation: Cyclagelosphaera rotaclypeata Bukry 1969
taxonomic rank: Species

Distinguishing features:
Parent taxon (Cyclagelosphaera): Circular watznaueriacean placolith coccoliths.
This taxon: Cyclagelosphaera with relatively wide central area filled with radial elements.

Farinacci & Howe catalog pages: C. rotaclypeata *

Search data:
LITHS: placolith, circular, CA: ca_conjunct, closed,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
Lith size: 4->9µm; Coccosphere size: 10->12µm; Liths per sphere: 11->13
Data source notes: morphom data from illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Recorded from the Early Danian of Maastricht by Mai (1997) and, in bloom abundances, by Mai (2001).
Last occurrence (top): within NP1 zone (65.47-66.04Ma, top in Danian stage). Data source: Mai 2001
First occurrence (base): within Albian Stage (100.50-113.20Ma, base in Albian stage). Data source: Burnett 1998

Plot of occurrence data:

References:

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

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 132-199. gs O

Mai, H. (2001). New coccolithophorid taxa fom the Guelhemmerberg airshaft. Lower Paleocene, The Netherlands. Micropaleontology. 47: 144-154. gs

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


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Cyclagelosphaera rotaclypeata compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-5-2024

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=406 Go to Archive.is to create a permanent copy of this page - citation notes
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