Nannotax3 - ntax_mesozoic - Cyclagelosphaera deflandrei

Cyclagelosphaera deflandrei


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

Distinguishing features:
Parent taxon (Cyclagelosphaera): Circular watznaueriacean coccoliths.
This taxon: Large (>9µm) Cyclagelosphaera with a closed central area.


Taxonomy:

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

Farinacci & Howe catalog pages: C. deflandrei * , W. manivitiae *

Distinguishing features:
Parent taxon (Cyclagelosphaera): Circular watznaueriacean coccoliths.
This taxon: Large (>9µm) Cyclagelosphaera with a closed central area.


Morphology:


Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

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

See also: Watznaueria moshkovitzii - 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 NJT13b subzone (157.10-160.84Ma, base in Oxfordian stage). Data source: Casellato 2010

Plot of occurrence data:

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 O

Bown, P. R. (1992). New calcareous nannofossil taxa from the Jurassic/Cretaceous boundary interval of Sites 765 and 261, Argo Abyssal Plain. Proceedings of the Ocean Drilling Program, Scientific Results. 123: 369-379. gs V O

Bukry, D. (1973f). Phytoplankton stratigraphy, Central Pacific Ocean, Deep Sea Drilling Project Leg 17. Initial Reports of the Deep Sea Drilling Project. 17: 871-889. gs O

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 O

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 O

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

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

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 O

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: 3-12-2022

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



Comments (1)

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Maurice Kevin Edward Cooper (Woking, UK)

The base of C. deflandreiin Casellato 2010 is top Middle Oxfordian not base Kimmeridgian as quote here (see figure 16)

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Jeremy Young (London, UK)

Kevin

Thank you for pointing that out, and i have corrected it now.

cheers Jeremy

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