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Praehedbergella pseudosigali Banner et al. 1993 from: Boudagher-Fadel, M.K.Banner, F.T.Whittaker, J.E.Simmons, M.D. (1997): Early Evolutionary History of Planktonic Foraminifera. Vol. 1
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Species Praehedbergella pseudosigali Banner et al. 1993


Discussion / Comments:
Boudagher-Fadel et al. (1997):
Remarks: P. pseudosigali has six and a half chambers in the penultimate whorl and four chambers abutting the umbilicus in the last whorl. The dorsal surface is slightly convex. The chambers are symmetrical and increase in size gradually with growth (b/a = 2 approx.), those in the last whorl become depressed (h/L = 0.85 approx.). The umbilicus is small (u/uh = 0.29 approx.) and the aperture is a high arch. Perforation cones are visible on chambers of the last whorl.
Synonym list:
Boudagher-Fadel et al. (1997):
1993 Praehedbergella pseudosigali Banner et al.. - Banner et al. : p.6 pl. 2; fig. 1a-c
1997 Praehedbergella pseudosigali Banner et al.. - Boudagher-Fadel et al. : p.115 pl. 7.2; fig. 4-6; Figure: 7.1
References:

Banner,F.T.; Copestake,P.. and White,M.R.. (1993):
Barremian-Aptian Praehedbergellidae of the North Sea area: a reconnaissance . Bulletin of The Natural History Museum, London (Geology) Vol. 49 p. 1-30

Boudagher-Fadel,M.K.; Banner,F.T.; Whittaker,J.E. and Simmons,M.D. (1997):
Early Evolutionary History of Planktonic Foraminifera. Vol. 1
Anonymous: Unedited TaxonConcept data
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