Taxonomy
Original description: caractérisée par sa forme trochospiralée mais nettement différente de G. dubia et rattachée à G. portsdownensis par la taille presque uniforme ds loges du dernier tour,
Translated from French: Characterized by its trochospiral form but clearly different from Globigerina dubia Egger. Related to Globigerina portsdownensis Williams and Mitchel because of the almost uniform size of the chambers in the last whorl.
Entries in the Catalog of original descriptions: Globigerina paradubia, Globigerina kelleri
Character matrix
| test outline: | Circular | chamber arrangement: | Trochospiral | edge view: | Spiroconvex | aperture: | Umbilical |
| sp chamber shape: | Inflated | coiling axis: | High | periphery: | N/A | aperture border: | Tegilla |
| umb chbr shape: | Inflated | umbilicus: | Wide | periph margin shape: | Broadly rounded | accessory apertures: | None |
| spiral sutures: | Strongly depressed | umb depth: | Shallow | wall texture: | - | shell porosity: | Finely Perforate: 1-2.5µm |
| umbilical or test sutures: | Strongly depressed | final-whorl chambers: | 5.5-6.5 | N.B. These characters are used for advanced search. N/A - not applicable | |||
Geological Range:
Last occurrence (top): within D. concavata zone (85.60-89.75Ma, top in Santonian stage). Data source: [copied from Chronos database]
First occurrence (base): within W. archaeocretacea zone (93.52-94.03Ma, base in Cenomanian stage). Data source: [copied from Chronos database]
Plot of range and occurrence data:
Falzoni, F. & Petrizzo, M. R. (2020). Patterns of planktonic foraminiferal extinctions and eclipses during Oceanic Anoxic Event 2 at Eastbourne (SE England) and other mid-low latitude locations. Cretaceous Research. 116: 1-28. gs Leckie, M. (1985). Foraminifera of the Cenomanian-Turonian boundary interval, Greenhorn Formation, Rock Canyon Antoicline, Pueblo, Colorado. In, Pratt, L. M., Kauffman, E. G. & Zelt, F. B. (eds) Fine-grained deposits and biofacies of the Cretaeous Wesern Interior Seaway: Evidence of cyclic sedimentary processes. SEPM Field Trip Guidebook . 4: 139-149. gs Sigal, J. (1952). Apercu stratigraphique sur la micropaleontologie du Cretace. XIX Congr. géol. internat., Algers, Monographies Regionales. 1(26): 3-43. gsReferences:

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Whiteinella paradubia compiled by the pforams@mikrotax project team viewed: 11-4-2026
Short stable page link: https://mikrotax.org/pforams/index.php?id=110579 Go to Archive.is to create a permanent copy of this page - citation notes |
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