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Blefuscuiana


Classification: pf_mesozoic -> Praehedbergellidae -> Blefuscuiana
Sister taxa: Blefuscuiana, Gorbachikella,
Daughter taxa: (blue => in age window 0-800Ma)






Specimens which cannot be assigned to established species

Taxonomy

Citation: Blefuscuiana Banner & Desai 1988
Rank: Genus

Original description: Test a low trochospiral of two or more whorls, typically with six or seven chambers in the final whorl, but there may be as few as five or as many as eight. The chambers are subglobular or depressed, reniform or ovoid; they are not radially elongate; spiral side evolute, umbilical side partly involute; aperture intra-extraumbilical, reaching to or even slightly over the periphery of the earlier whorl; the aperture possesses a porticus, of uniform breadth throughout or broadest posteriorly; relict apertures and portici are usually visible in the umbilical parts of the chambers of about half of the last whorl. The wall is microperforate and its surface is smooth, lacking muricae.

Entries in the Catalog of original descriptions: Blefuscuiana

Geological Range:
Last occurrence (top): within Aptian Stage (112.95-126.30Ma, top in Aptian stage). Data source: Total of range of species in this database
First occurrence (base): within Barremian Stage (126.30-130.77Ma, base in Barremian stage). Data source: Total of range of species in this 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

References:

Banner, F. T. & Desai, D. (1988). A review and revision of the Jurassic-Early Cretaceous Globigerinina,with especial reference to the Aptian assemblages of Speeton (North Yorkshire, England). Journal of Micropalaeontology. 7: 143-185. gs


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Blefuscuiana 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=110024 Go to Archive.is to create a permanent copy of this page - citation notes



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