|Daughter taxa: (blue => in age window 0-800Ma)|
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
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 range and occurrence data:
Blefuscuiana compiled by the pforams@mikrotax project team viewed: 20-10-2020
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