Blefuscuiana occulta Longoria 1974 (TaxonConcept

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Jurassic-Early Cretaceous Forams

Species Blefuscuiana occulta Longoria 1974

Discussion / Comments:

Banner & Desai (1988):
This species has six to seven, subglobular to slightly depressed chambers per whorl, with depressed subradial sutures, a flattened to slightly concave spiral side (the height of the last chamber being about 1/3 of the test diameter), and an open deep, umbilicus (about 25% of the total test diameter).
Boudagher-Fadel et al. (1997):
Remarks: This species has six subglobular chambers (h/L = l approx.) abutting the umbilicus, a flattened to slightly concave dorsal side, half of which occupied by early whorls, and, ventrally, an open (u/uh = 0.5 approx.) and deep umbilicus.

Systematics:

22
Superfamilia Globigerinaceae
  Familia Praehedbergellidae
   Subfamilia Praehedbergellinae
    Genus Blefuscuiana
     Species Blefuscuiana occulta

Synonym list:

Banner & Desai (1988):

1974 Hedbergella occulta Longoria. - Longoria : 63-64 pl 11 figs 1-3, 7-8; pl 20 figs 5-7,8-9,17-18

1988 Blefuscuiana occulta Longoria. - Banner & Desai : 162, 163 pl 6 figs 8-12

Boudagher-Fadel et al. (1997):

1974 Hedbergella occulta Longoria. - Longoria : p. 63, 64 pl. 11, fig. 7, 8; pl. 19, fig. 17, 18; pl. 20, fig. 5-9, 17-18

1988 Blefuscuiana occulta Longoria. - Banner & Desai : p.162 pl. 6; fig. 8-12

1990 Hedbergella occulta Longoria. - Weidich : p.167 pl. 56; fig. 16-18

1995 Hedbergella cf. occulta Longoria. - Weiss : pl. 1; fig. 10-12

1997 Blefuscuiana occulta sensu stricto Longoria. - Boudagher-Fadel et al. : p.151 pl. 8.8; fig. 11, 12; Figure: 8.1

References:

Longoria,J.F. (1974):
Stratigraphic, morphologic and taxonomic studies of Aptian planktonic Foraminifera . Revista Espanola de MicropaleontologíaNo extraord p. 1-107

Banner,F.T. and Desai,D. (1988):
A review and revision of the Jurassic-Early Cretaceous Globigerinina, with special reference to the Aptian assemblages of Speeton (North Yorkshire, England) . J. micropalaeontol. Vol. 7(2) p. 143-185

Weidich,K.F.. (1990):
Die Kalkalpine Unterkreide und ihre Foraminiferenfauna . Zitteliana Vol. 17 p. 1-312

Weiss,W.. (1995):
Aptian planktonic foraminifers from the Wiechendorf 1/86 Borehole. . Geologisches Jahrbuch (series A) Vol. 141 p. 113-131

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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