Nannotax3 - ntax_mesozoic - Zebrashapka Nannotax3 - ntax_mesozoic - Zebrashapka

Zebrashapka


Classification: ntax_mesozoic -> Eiffellithales -> Rhagodiscaceae -> Zebrashapka
Sister taxa: Percivalia, Rhagodiscus ⟩⟨ Calcicalathina, Zebrashapka

Distinguishing features:
Parent taxon (Rhagodiscaceae): Eiffelithales with V-units forming most of rim (R-units typically thin plates on proximal surface, so LM images are typically unicyclic. Central-areas typically filled by a plate of granular calcite. The central structure may be spine-bearing, perforate or massive.
This taxon: Solid, truncated-cone-shaped coccolith (possibly a holococcolith), with distinct outer rim and banded core.


Daughter taxa (time control age-window is: 0-800Ma)
Zebrashapka vanhintei
Solid, truncated-cone-shaped coccolith (possibly a holococcolith), with distinct outer rim and banded core.
Zebrashapka sp.
Specimens not identified to species level

Taxonomy:

Citation: Zebrashapka Covington & Wise, 1987
taxonomic rank: Genus
Type species: Zebrashapka vanhintei Covington and Wise, 1987

Farinacci & Howe catalog pages: Zebrashapka *

Distinguishing features:
Parent taxon (Rhagodiscaceae): Eiffelithales with V-units forming most of rim (R-units typically thin plates on proximal surface, so LM images are typically unicyclic. Central-areas typically filled by a plate of granular calcite. The central structure may be spine-bearing, perforate or massive.
This taxon: Solid, truncated-cone-shaped coccolith (possibly a holococcolith), with distinct outer rim and banded core.

Search data:
LITHS: murolith, nannolith-radiate, elliptical, cylindrical, CA: closed, process, CROSS-POLARS: rim-unicyclic,
Lith size: 4->7µm;
Data source notes: size range of included species
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): at top of Early Aptian Substage (100% up, 118.7Ma, in Aptian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Late Hauterivian Substage (126.50-130.60Ma, base in Hauterivian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:

Covington, J. M. & Wise, S. W. (1987). Calcareous nannofossil biostratigraphy of a Lower Cretaceous deep-sea fan complex: Deep Sea Drilling Project Leg 93 Site 603, lower continental rise off Cape Hatteras. Initial Reports of the Deep Sea Drilling Project. 93: 617-660. gs O


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Zebrashapka compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-12-2024

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11316 Go to Archive.is to create a permanent copy of this page - citation notes
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