Alanlordella banneri Boudagher-Fadel 1995 from: Boudagher-Fadel, M.K.Banner, F.T.Whittaker, J.E.Simmons, M.D. (1997): Early Evolutionary History of Planktonic Foraminifera. Vol. 1 | . |
Notice: This catalogue page may contain unedited data.
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Species Alanlordella banneri Boudagher-Fadel 1995 |
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| Diagnosis / Definition: |
Boudagher-Fadel et al. (1997):
Diagnosis: Test large, about 460-550 µm at its
maximum diameter, planispiral, early whorls
compressed; eight 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
becoming deep and the rims of these depressions
fusing to give a cancellate texture; aperture interiomarginal,
equatorial, symmetrical, extending laterally
into small umbilici, relict umbilical apertures
furnished with thin portici. |
| Discussion / Comments: |
Boudagher-Fadel et al. (1997):
Remarks: This species differs from A. bentonensis
(Morrow) in having a higher number of
(narrower) chambers, a muricate test with very
concentrated macroperforations. It differs from
Alanlordella praebuxtor- (Wonders) in lacking
muricocarina on the periphery of the early
whorls, and in the much deeper and larger macroperforations. |
| Systematics: |
22 Superfamilia Globigerinaceae
Familia Planomalinidae
Genus Alanlordella
Species Alanlordella banneri
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| Synonym list: |
Boudagher-Fadel et al. (1997):
1997 Alanlordella banneri Boudagher-Fadel. - Boudagher-Fadel et al. : p. 7, 217 pl. 1.1, fig. 6;
pl. 12.1, fig. 1-9;
Figure: 12.1
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| Was used in synonym list of: |
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| References: |
Ben Haj Ali,N.. (1987): Étude biostratigraphique du Crétacé (Aptien á Cénomanien) de la Région du Teboursouk (Tunisie septentrionale) sur la base des foraminiféres planctoniques . Notes du Service Géologique Tunisie Vol. 54 p. 75-105
Boudagher-Fadel,M.K. (1995): The planktonic foraminifera of the Early Cretaceous of Tunisia compared to those of western and central Tethys . Paleopelagos Vol. 5 p. 137-160
Boudagher-Fadel,M.K.; Banner,F.T.; Whittaker,J.E. and Simmons,M.D. (1997): Early Evolutionary History of Planktonic Foraminifera. Vol. 1
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