Daughter taxa (time control age-window is: 0-800Ma) | ||||
Whiteinella aprica | ||||
Whiteinella archaeocretacea | ||||
Whiteinella aumalensis | ||||
Whiteinella baltica | ||||
Whiteinella bornholmensis | ||||
Whiteinella brittonensis | ||||
Whiteinella inornata | ||||
Whiteinella paradubia | ||||
Whiteinella sp. Specimens which cannot be assigned to established species |
Taxonomy
Original description: Test low trochospiral coil with shallow umbilicus; lacking carinae, but often having imperforate peripheral bands; primaty aperture extraumbilical-umbilical in position often nearly umbilical with large portici; portici having infralaminal accessory apertures situated near suture contacts, but lacking inramanial accesory apertures. Outer wall radial hyaline perforate: septal wall microgranular hyaline, perforate: portici minogranular hyaline, perforate(?).
Entries in the Catalog of original descriptions: Whiteinella
Distinguishing features:
Parent taxon (Hedbergellidae): Test trochospirally coiled, primary aperture interiomarginal, extraumbilical-umbilical, with prominent apertural lip, apertures of earlier chambers remain visible around the umbilical region; no sutural secondary apertures.
This taxon: Test in low trochospiral coil, chambers globular, five to seven in the final whorl, increasing gradually in size, sutures radial, depressed; wall calcareous, finely perforate, surface pustulose, especially on earlier chambers; aperture an interiomarginal, umbilical-extraumbilical arch, bordered by a wide apertural flap or porticus that extends into the umbilicus, those of successive chambers overlapping but not attached to previous flaps.
Geological Range:
Last occurrence (top): at top of G. elevata zone (100% up, 79.3Ma, in Campanian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within R. cushmani zone (94.03-98.69Ma, base in Cenomanian stage). Data source: Total of ranges of species in this database
Plot of range and occurrence data:
Loeblich, A. R. & Tappan, H. (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York. 1-1059. gsReferences:
Whiteinella compiled by the pforams@mikrotax project team viewed: 12-11-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=110571 Go to Archive.is to create a permanent copy of this page - citation notes |
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