Nannotax3 - ntax_main - Lapideacassis mariae Nannotax3 - ntax_main - Lapideacassis mariae

Lapideacassis mariae


Classification: ntax_main -> Nannolith families inc sed -> Lapideacassaceae -> Lapideacassis -> Lapideacassis mariae
Sister taxa: L. glans, L. mariae, L. asymmetrica, L. blackii, L. magnifica, L. bispinosa, L. cornuta, L. wisei, L. trispina, L. tricornus, L. multispinata, L. sp.


Taxonomy:
Citation: Lapideacassis mariae Black 1971
Taxonomic rank: species
Basionym: Lapideacassis mariae * Black 1971

Synonyms:

Distinguishing features:
Parent taxon (Lapideacassis): Hemispherical to cylindrical nannoliths, with walls constructed from one to several cycles of thin elements, enclosing a hollow central space; the nannolith tapers distally, and may have long apical spines or processes.
Species arranged here by number of spines.

This taxon: 0 spines; elongate, tiered; proximal collar


Morphology:
Narrow, tall Lapideacassis that is cyclindical in its lower half and tapers to a domed upper surface.

Search data:
LITHS: nannolith-radiate, circular, cylindrical, hollow, CROSS-POLARS: R-prominent,
Lith size: 5->8µm;
Data source notes: length (excluding spines) from illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Eocene Epoch (33.89-55.96Ma, top in Priabonian stage). Data source: [PRB rough estimate]
First occurrence (base): within Early Aptian Substage (118.70-121.40Ma, base in Aptian stage). Data source: Kennedy et al., 2000

Plot of occurrence data:

References:

Black, M. (1971b). Problematical Microfossils from the Gault Clay. Geological Magazine. 108(4): 325-327. gs

Bown, P. R. (2001). Calcareous nannofossils of the Gault, Upper Greensand and Glauconitic Marl (Middle Albian-Lower Cenomanian) from the BGS Selborne boreholes, Hampshire. Proceedings of the Geologists' Association. 112: 223-236. gs

Bown, P. R. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs O

Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Lower Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 86-131. 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

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

Gale, A. S., et al. (2011). The uppermost Middle and Upper Albian succession at the Col de Palluel, Hautes-Alpes, France: An integrated study (ammonites, inoceramid bivalves, planktonic foraminifera, nannofossils, geochemistry, stable oxygen and carbon isotopes, cyclostratigraphy). Cretaceous Research. 32: 59-130. gs

Kennedy, W. J., et al. (2000). Integrated stratigraphy across the Aptian-Albian boundary in the Marnes Bleues, at the Col de Pre _-Guittard, Arnayon (Drome), and at Tartonne (Alpes-de-Haute-Provence), France: a candidate Global Boundary Stratotype Section and Boundary Point for the base of the Albian Stage. Cretaceous Research. 21: 591-720. gs

Lees, J. A. & Bown, P. R. (2005). Upper Cretaceous calcareous nannofossil biostratigraphy, ODP Leg 198 (Shatsky Rise, Northwest Pacific Ocean). Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-60. gs

Perch-Nielsen, K. & Franz, H. E. (1977). Lapideacassis and Scampanella, calcareous nannofossils from the Paleocene at sites 354 and 356, DSDP Leg 39, Southern Atlantic. Initial Reports of the Deep Sea Drilling Project. 39: 849-862. gs

Pospichal, J. J. & Wise, S. W. (1990). Maestrichtian calcareous nannofossil biostratigraphy of Maud Rise ODP leg 113 sites 689 and 690, Weddell Sea. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 465-487. gs

Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs O


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Lapideacassis mariae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 9-9-2026

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