Lapideacassis wisei


Classification: Coccolithophores -> Nannolith families inc sed -> Lapideacassaceae -> Lapideacassis -> Lapideacassis wisei
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 wisei (Perch-Nielsen, in Perch-Nielsen & Franz, 1977) Young & Bown 2014
Rank: Species
Basionym: Scampanella wisei Perch-Nielsen, in Perch-Nielsen & Franz, 1977

Distinguishing features: 3, asymmetric, spines; proximal collar

Farinacci & Howe catalog pages: Scampanella wisei *


Morphology remarks: Nannolith with a proximal tier, a distal tier, and an apical cone from which three asymmetrically arranged apical spines extend.

Search data:
TagsLITHS: nannolith-radiate, circular, cylindrical, hollow, RIM: tiered, CA: process, PROCESS: hollow, monocrystalline, spines,
CSPH: not known, V-UNITS: none, R-UNITS: all, R-prominent, DETAILS: c-axes flaring,
MetricsLith size: 6->12µm; Segments: 6->10;
Sources: length (excluding spines) from illustrated specimens; elem numbers from count on SEM image and extend range by +-2
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP9 zone (55.86-57.21Ma, top in Ypresian stage). Data source: Perch-Nielsen & Franz 1977
First occurrence (base): within NP3 zone (63.25-64.81Ma, base in Danian stage). Data source: Perch-Nielsen & Franz 1977

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: Lapideacassis wisei, synonyms included - Scampanella wisei; Lapideacassis wisei;
  • space-time plot :: Samples map :: Parent: Lapideacassis

    References:

    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

    Young, J. R. & Bown, P. R. (2014). Some emendments to calcareous nannoplankton taxonomy. Journal of Nannoplankton Research. 33(1): 39-46. gs


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    Lapideacassis wisei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-2-2020

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=808 Go to Archive.is to create a permanent copy of this page - citation notes



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