Lapideacassis mariae


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

Taxonomy:

Citation: Lapideacassis mariae Black, 1971
Rank: Species

Distinguishing features: 0 spines; elongate, tiered; proximal collar

Farinacci & Howe catalog pages: Lapideacassis mariae + *


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

Search data:
TagsLITHS: nannolith-radiate, circular, cylindrical, hollow, PROCESS: hollow, R-UNITS: R-prominent,
MetricsLith size: 5->8┬Ám;
Sources: 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 (122.98-126.30Ma, base in Aptian stage). Data source: Kennedy et al., 2000

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Lapideacassis

    References:

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

    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


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    Lapideacassis mariae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-2-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=804 Go to Archive.is to create a permanent copy of this page - citation notes



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