Watznaueria manivitiae


Classification: ntax_mesozoic -> Watznaueriales -> Watznaueriaceae -> Watznaueria -> Watznaueria manivitiae
Sister taxa: W. barnesiae, W. bayackii, W. fossacincta, W. manivitiae, W. ovata ⟩⟨ W. britannica, W. reinhardtii ⟩⟨ W. biporta, W. cynthae ⟩⟨ W. contracta, W. okadai, W. quadriradiata ⟩⟨ W. fasciata, W. rawsonii, C. baticlypeata, W. sp.

Distinguishing features: Large (>9µm) Watznaueria with central-area that is closed or with only very narrow opening, with no central area structures.


Taxonomy:

Citation: Watznaueria manivitiae Bukry, 1973
Rank: Species
Synonyms:
Variants:
Taxonomic discussion: This species had a confused taxonomic origin as discussed at length by Moshkovitz & Ehrlich (1987) who introduced neotypes for the species.

Farinacci & Howe catalog pages: W. manivitiae *

Distinguishing features: Large (>9µm) Watznaueria with central-area that is closed or with only very narrow opening, with no central area structures.


Morphology: The coccolith is usually sub-circular but the central area is distinctly elliptical.
Smaller coccoliths with this morphology also occur, they range lower and possibly are of biostratigraphic use [oral communication during Jurassic Workshop, Lyon 2016]

Search data:
TagsLITHS: placolith, circular, elliptical, CA: ca_conjunct, vacant, closed,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
MetricsLith size: 9->16µm;
Data source notes: Varol & Bowman 2019
The morphological data given here can be used on the advanced search page. See also these notes

See also: Cyclagelosphaera deflandrei - a similar but circular species;

Geological Range:
Notes: More common and with a longer stratigraphic range in the Tethyan realm. Often common in Late Jurassic and Early Cretaceous sediments (Moshkovitz & Ehrlich 1987)
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Lees & Bown 2005 - consistently present to end Cret
First occurrence (base): at base of NJT10a subzone (0% up, 170.1Ma, in Bajocian stage). Data source: Mattioli & Erba 1999, fig. 12 - zonal marker

Plot of occurrence data:

References:

Bown, P. R. & Cooper, M. K. E. (1989b). New calcareous nannofssils from the Jurassic. Journal of Micropalaeontology. 8: 91-96. gs V O

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

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. (1973g). Phytoplankton stratigraphy, Deep Sea Drilling Project Leg 20, Western Pacific Ocean. Initial Reports of the Deep Sea Drilling Project. 20: 307-317. gs V O

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

Gale, A. S., Kennedy, W. J., Burnett, J. A., Caron, M. & Kidd, B. E. (1996). The Late Albian to Early Cenomanian succession at Mont Risou, near Rosans (Drôme, SE France): an integrated study (ammonites, inoceramids, planktonic foraminifera, nannofossils, oxygen and carbon isotopes). Cretaceous Research. 17: 515-606. gs

Mattioli, E. & Erba, E. (1999). Synthesis of calcareous nannofossil events in Tethyan lower and middle Jurassic successions. Rivista Italiana di Paleontologia e Stratigrafia. 105(3): 343-376. gs V O

Moshkovitz, S. & Ehrlich, A. (1987). Watznaueria manivitae Bukry taxonomic problems and distribution in the Jurassic-Lower Cretaceous sediments of Israel and other Tethyan areas. INA Newsletter. 9(3): 110-115. gs V O

Rahman, A. & Roth, P. H. (1991). Upper Jurassic calcareous nannofossils from the DSDP Site 534 in the Blake Bahama Basin, western North Atlantic. Eclogae Geologicae Helvetiae. 84: 765-789. gs V O

Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 31(1): 39-56. gs V 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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Watznaueria manivitiae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-1-2021

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11307 Go to Archive.is to create a permanent copy of this page - citation notes



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