Seribiscutum


Classification: Mesozoic -> Podorhabdales -> Biscutaceae -> Seribiscutum
Sister taxa: Biscutum, Discorhabdus, Similiscutum, Boletuvelum, Chiastella, Crucibiscutum, Gaarderella, Gephyrobiscutum, Helicorhabdus, Jimenezberrocosoia, Seribiscutum, Sollasites,

Distinguishing features: Elliptical with central-area spanned by broad platelets.


Daughter taxa: (blue => in age window 0-800Ma)
Small (3-4 µm) with relatively narrow central-area spanned by two parallel tranverse bars/platelets.
Medium size (5-9µm); central-area with ca 4 broad platelets that zig-zag across the central area. Weakly bicyclic.
Specimens not identified to species level

Taxonomy:

Citation: Seribiscutum Filewicz et al. in Wise & Wind, 1977
Rank: Genus
Type species: Seribiscutum bijugum Filewicz et al. in Wise and Wind, 1977.

Farinacci & Howe catalog pages: Seribiscutum *

Distinguishing features: Elliptical with central-area spanned by broad platelets.

Search data:
TagsLITHS: placolith, elliptical, CA: plate, V-UNITS: V-prominent, DETAILS: ca_disjunct,
MetricsLith size: 3->9µm;
Sources: 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): in upper part of Campanian Stage (67% up, 75.9Ma, in Campanian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Aptian Stage (0% up, 126.3Ma, in Aptian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

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


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Seribiscutum compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-7-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11080 Go to Archive.is to create a permanent copy of this page - citation notes



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