CATALOG OF ORIGINAL DESCRIPTIONS: Alanlordella banneri BouDagher-Fadel 1995

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> A -> Alanlordella -> Alanlordella banneri
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Alanlordella banneri

Citation: Alanlordella banneri BouDagher-Fadel 1995
Rank: Species
Type locality: Beauvoir III, Tunisia
Type age: Early Albian
Type sample and level: SS170
Type & figured specimens: Pl.2, figs 10-12. Holotype: NHML PF53138

Current identification/main database link:


Original Description
Test large, about 0.46-0.55 mm at its maximum diameter, planospiral, early whorls compressed; 8 chambers in the last whorl, slightly inflated, narrow, higher than broad, increasing gradually in size; sutures slightly curved depressed; wall macroperforate with sharp muricae on the early whorls, the macroperforations become deep and the rims of these depressions fuse to give a cancellate texture; aperture interiomarginal, equatorial, symmetrical, extending laterally into a small umbilicus, relict umbilical apertures are seen along the last three chambers of the final whorl; fmal aperture and relict apertures are furnished with thin portici.

Etymology: In honour of Prof. F. Banner, University College London, in recognition of his advice and help throughout the researchs, without which the work would not have been accomplished.

Extra details from original publication
Remarks: This species differs from 'B?' bentonensis in having narrower and a higher number of chambers, a muricate test with very concentrated macroperforations. It differs from Alanlordella praebuxtorfi in lacking muricocarina on the periphery of the early whorls, and the much deeper and larger macroperforations. Similar specimens were figured by Ben Haj Ali (1987) consecutively as "Globigerinelloides caseyi" and "Globigerinelloides sp" from the Late Albian of Sfa Bou Bker in Tunisia. In this study, it is found in the Early Albian of Tunisia (Beauvoir III, SS 170). Range: Early to Late Albian.

References:

BouDagher-Fadel, M. K. (1995). The planktonic Foraminifera of the Early Cretaceous of Tunisia compared to those of western and central Tethys. Paleopelagos. 5: 137-159. gs

BouDagher-Fadel, M., Banner, F. T., Bown, P. R., Simmons, M. D. & Gorbachik, T. N. (1995). Gorbachikella from the Hauterivian, Barremian-Aptian of Tunisia. Revue de Micropaléontologie. 38(3): 179-193. gs


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Alanlordella banneri compiled by the pforams@mikrotax project team viewed: 11-12-2019

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