Lapideacassis blackii


Classification: Coccolithophores -> Nannolith families inc sed -> Lapideacassaceae -> Lapideacassis -> Lapideacassis blackii
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 blackii Perch-Nielsen, in Perch-Nielsen & Franz, 1977
Rank: Species

Distinguishing features: 1 spine; symmetric cone, tiered

Farinacci & Howe catalog pages: Lapideacassis blackii *


Morphology remarks: Nannolith with proximal tier, two distal tiers, and an apical cone extending into an apical, central process.

Search data:
TagsLITHS: nannolith-radiate, circular, cylindrical, hollow, RIM: tiered, CA: process, PROCESS: hollow, monocrystalline, spine,
CSPH: not known, V-UNITS: none, R-UNITS: all, R-prominent, DETAILS: c-axes flaring,
MetricsLith size: 7->10µm; Segments: 10->14;
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 NP3 zone (63.25-64.81Ma, top in Danian 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 blackii, synonyms included - Lapideacassis blackii;
  • 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

    Shamrock, J. L. & Watkins, D. K. (2012). Eocene calcareous nannofossil biostratigraphy and community structure from Exmouth Plateau, Eastern Indian Ocean (ODP Site 762). Stratigraphy. 9(1): 1-11. gs


    nannotaxlogo400px

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

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=801 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet on this page. Please do add comments if you spot any problems, or have information to share

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics