Similiscutum gephyrion


Classification: ntax_mesozoic -> hidden -> deleted -> Similiscutum gephyrion
Sister taxa: << < N. erbae, Obliquipithonella, O. prasina, O. rhombica, Orthopithonella, O. geometrica, O. misurinae, P. fletcheri, P. bownii, P. geometrica, P. triassica subsp. punctata, P. triassica subsp. triassica, P. charlotteii, P. fistulatus, S. pseudobiskayae, S. gephyrion, S. acutiferrus, S. laffittei, Thoracosphaera, T. wombatensis, Z. sisyphus, W. communis, L. primigenius, C. crucifer, T. senarius, Z. elegans, S. cotortuosus, N. funiculus group, L. imprimus, S. humilis

Distinguishing features: Medium sized biscutacean with wide shields and very narrow central area spanned by a transverse-bar-like structure. Unicyclic or weakly bicyclic image in XPL with clearly visible elements.


Taxonomy:

Citation: Similiscutum gephyrion de Kaenel & Bergen, 1993
Rank: species

Farinacci & Howe catalog pages: Z. gephyrion [no catalog entry yet]

Distinguishing features: Medium sized biscutacean with wide shields and very narrow central area spanned by a transverse-bar-like structure. Unicyclic or weakly bicyclic image in XPL with clearly visible elements.


Morphology: Variant of Biscutum finchii.

Search data:
TagsLITHS:
MetricsLith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Late Pliensbachian Substage (182.70-187.56Ma, top in Pliensbachian stage). Data source: de Kaenel & Bergen 1993
First occurrence (base): within Late Pliensbachian Substage (182.70-187.56Ma, base in Pliensbachian stage). Data source: de Kaenel & Bergen 1993

Plot of occurrence data:

References:

de Kaenel, E. & Bergen, J. A. (1993). New Early and Middle Jurassic coccolith taxa and biostratigraphy from the eastern proto-Atlantic (Morocco, Portugal and DSDP Site 547B). Eclogae Geologicae Helvetiae. 86(861-907): -. gs V O

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Similiscutum gephyrion compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-4-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11087 Go to Archive.is to create a permanent copy of this page - citation notes
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