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Blefuscuiana alobata


Classification: pf_mesozoic -> Praehedbergellidae -> Blefuscuiana -> Blefuscuiana alobata
Sister taxa: B. alobata, B. cumulus, B. daminiae, B. depressa, B. implana, B. laculata, B. sp.,

Taxonomy

Citation: Blefuscuiana alobata Banner, Copestake & White, 1993
Rank: Species
Basionym: Blefuscuiana laculata alobata

Type images:

Original description: Diagnosis. - A subspecies of Blefuscuiana laculata Banner, Copestake and White, 1993, characterised by having intercameral sutural angles at the periphery of about 130-145 degrees; the test surface lacks perforation cones.

Entries in the Catalog of original descriptions: Blefuscuiana laculata alobata

Geological Range:
Last occurrence (top): within Barremian Stage (126.30-130.77Ma, top in Barremian stage). Data source: [copied from Chronos database]
First occurrence (base): within Barremian Stage (126.30-130.77Ma, base in Barremian stage). Data source: [copied from Chronos database]

Plot of occurrence data:

Dec 2017 - Plotting of Neptune data has been re-enabled on the Mesozoic pages following revision of the age-models in Neptune. The data is, however, still very sparse for the Early Cretaceous

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Blefuscuiana

    Character matrix

    test outline:-chamber arrangement:Pseudoplanispiraledge view:-aperture:-
    sp chamber shape:-coiling axis:Very lowperiphery:-aperture border:-
    umb chbr shape:-umbilicus:-periph margin shape:-accessory apertures:-
    spiral sutures:Moderately depressedumb depth:-wall texture:-shell porosity:-
    umbilical or test sutures:Moderately depressedfinal-whorl chambers:4.0-4.5 N.B. These characters are used for advanced search. N/A - not applicable

    References:

    Banner, F. T., Copestake, P. & White, M. R. (1993). Barremian-Aptian Praehedbergellidae of the North Sea area: a reconnaisance. Bulletin of the Natural History Museum, London (Geology). 49: 1-30. gs


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    Blefuscuiana alobata compiled by the pforams@mikrotax project team viewed: 15-12-2019

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    Short stable page link: http://mikrotax.org/pforams/index.php?id=110025 Go to Archive.is to create a permanent copy of this page - citation notes



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