Cyclagelosphaera deflandrei


Classification: Mesozoic -> Watznaueriales -> Watznaueriaceae -> Cyclagelosphaera -> Cyclagelosphaera deflandrei
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: Large (>9µm) Cyclagelosphaera with a closed central area.


Taxonomy:

Citation: Cyclagelosphaera deflandrei (Manivit, 1966) Roth, 1973
Rank: Species
Basionym: Coccolithus deflandrei Manivit, 1966
Variants: de Kaenel & Bergen (1996) recognised two varieties:
Synonyms: Watznaueria deflandrei (Manivit, 1966)

Farinacci & Howe catalog pages: Coccolithus deflandrei *

Distinguishing features: Large (>9µm) Cyclagelosphaera with a closed central area.

Search data:
TagsLITHS: placolith, circular, CA: closed,
CSPH: equant, monomorphic, R-UNITS: R-prominent, DETAILS: ca_conjunct, rim-unicyclic,
MetricsLith size: 9->14µm;
Sources: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

See also: Watznaueria manivitiae - similar but elliptical;

Geological Range:
Last occurrence (top): within Hauterivian Stage (130.77-133.88Ma, top in Hauterivian stage). Data source: [PRB rough estimate]
First occurrence (base): within Kimmeridgian Stage (152.06-157.25Ma, base in Kimmeridgian stage). Data source: Casellato 2010

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 deflandrei, synonyms included - Coccolithus deflandrei; Cyclagelosphaera deflandrei; Watznaueria deflandrei;
  • 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 :: ::

    Casellato, C. E. (2010). Calcareous nannofossil biostratigraphy of Upper Callovian - Lower Berriasian successions from the Souhern Alps, North Italy. Rivista Italiana di Paleontologia e Stratigrafia. 116(3): 357-404. gs :: ::

    de Kaenel, E. & Bergen, J. A. (1996). Mesozoic calcareous nannofossil biostratigraphy from sites 897, 899, and 901, Iberia Abyssal Plain: New biostratigraphic evidence. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 27-59. gs :: view :: open

    Manivit, H. (1966). Sur quelques coccolithes nouveaux du Néocomien. Compte Rendue Sommaire de la Société Géologique de France. 7: 267-268. gs :: ::

    Mutterlose, J. (1992). Lower Cretaceous nannofossil biostratigraphy off northwestern Australia (Leg 123). Proceedings of the Ocean Drilling Program, Scientific Results. 123: 343-368. gs :: view :: open

    Roth, P. H. (1973). Calcareous nannofossils: Leg 17 of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 17: 695-795. gs :: view :: open

    Varol, O. & Bowman, A. R. (2019). Taxonomic revision of selected Late Jurassic (Tithonian) calcareous nannofossils and the application of mobile mounting. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen. 291: 65-87. gs :: ::

    Varol, O. & Girgis, M. (1994). New taxa and taxonomy of some Jurassic to Cretaceous calcareous nannofossils. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen. 192: 221-253. gs :: ::


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    Cyclagelosphaera deflandrei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 10-7-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10342 Go to Archive.is to create a permanent copy of this page - citation notes



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