TaxonConcept: Blefuscuiana convexa Longoria 1974 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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Blefuscuiana convexa Longoria 1974 from: Boudagher-Fadel, M.K.Banner, F.T.Whittaker, J.E.Simmons, M.D. (1997): Early Evolutionary History of Planktonic Foraminifera. Vol. 1

Anonymous: Unedited TaxonConcept data

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Species Blefuscuiana convexa Longoria 1974

Discussion / Comments:

Boudagher-Fadel et al. (1997):
Remarks: Loeblich and Tappan (1988, p. 704) considered Loeblichella Pessagno (1967) as a genus of uncertain status; the types being probably internal moulds and poorly preserved. Also, Longoria's specimens lack the sutural apertures on the spiral side originally said to occur on the type species, Praeglobotruncana hessi hessi. According to Longoria (1974), his L. convexa differs from L. moulladei only by having a less convex dorsal side. A close study of the type specimens of the two species (reproduced in Plate 8.4, Figs 1-6) shows that the degree of convexity of the dorsal side, in both species, is the same. We regard them as synonyms and, as first revising authors, select convexa has having priority. B. convexa has five very depressed chambers (h/L = approx.) in the last whorl. The umbilicus is narrow (u/uh = 0.25 approx.). The aperture is a narrow intraumbilical-extraumbilical slit.

Systematics:

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

Synonym list:

Boudagher-Fadel et al. (1997):

1974 Loeblichella convexa Longoria. - Longoria : p.73 pl. 14; fig. 12-14

1974 Loeblichella moulladei Longoria. - Longoria : p.73 pl. 14; fig. 9-11, 15-17

1997 Blefuscuiana convexa Longoria. - Boudagher-Fadel et al. : p.143 pl. 8.4; fig. 1-8; 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

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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