Cyclagelosphaera sp.


Classification: Mesozoic -> Watznaueriales -> Watznaueriaceae -> Cyclagelosphaera -> Cyclagelosphaera sp.
Sister taxa: C. margerelii, C. alta, C. reinhardtii, C. rotaclypeata, C. shenleyensis, C. argoensis, C. brezae, C. centrumelliptica, C. deflandrei, C. jiangii, C. lacuna, C. wiedmannii, C. sp.,

Distinguishing features: Specimens not identified to species level


Taxonomy:

Citation: Cyclagelosphaerasp.
Synonyms: Markalius perforatus Perch-Nielsen (1973) - incompletely grown form [JRY]
Cyclagelosphaera perforata (Perch-Nielsen 1973) Verbeek 1977

Farinacci & Howe catalog pages: Markalius perforatus *

Distinguishing features: Specimens not identified to species level


Morphology remarks: We are using this category for images of specimens which can be identified to generic level but have not been definitively assigned to a single species.

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in stage). Data source:

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Cyclagelosphaera sp., synonyms included - Cyclagelosphaera reinhardtii/C. alta; Cyclagelosphaera sp.; Markalius perforatus; Cyclagelosphaera sp. cf. argoenis;
  • space-time plot :: Samples map :: Parent: Cyclagelosphaera

    References:

    Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 34-85. gs

    Mutterlose, J. & Wise, S. W. (1990). Lower Cretaceous nannofossil biostratigraphy of ODP Leg 113 Holes 692B and 693A, continental slope off east Antarctica, Weddell Sea. Proceedings of the Ocean Drilling Program. Scientific Results. 113: 325-351. gs

    Perch-Nielsen, K. (1973). Neue Coccolithen aus dem Maastrichtien von Danemark, Madagaskar und Agypten. Geological Society of Denmark, Bulletin. 22: 306-333. gs

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


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    Cyclagelosphaera sp. compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 5-12-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10351 Go to Archive.is to create a permanent copy of this page - citation notes



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