Claviblowiella saundersi Bolli 1959 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 Claviblowiella saundersi Bolli 1959 |
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| Discussion / Comments: |
Boudagher-Fadel et al. (1997):
Remarks: This species is characterized by its
asymmetrically ovoid chambers, which are higher
in their posterior part than anteriorly. The specimens
figured by Banner and Desai (1988, figs 4-6)
from the earliest part of the Late Aptian and those
found by us in Jebel Chenanrafa, Tunisia, from
the latest part of the Early Aptian, show the phylogenetically
early elongation of the chambers. This
radial elongation is more pronounced, highest in
mid-point, in the latest Aptian of the Maridale
Formation (Bolli, 1959, fig. 11, Masters, 1977, fig.
6) and the Crimea (Gorbachik, 1986, fig. 4). The
specimens figured here from the Late Aptian of
Crimea (Plate 10.2, Figs 7-11) show that the
ultimate and penultimate chambers can be asymmetrically
higher in their posterior part. |
| Systematics: |
22 Superfamilia Globigerinaceae
Familia Schackoinidae
Genus Claviblowiella
Species Claviblowiella saundersi
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| Synonym list: |
Boudagher-Fadel et al. (1997):
1997 Claviblowiella saundersi Bolli. - Boudagher-Fadel et al. : p. 191, 193 pl. 10.2, fig. 7-11;
pl. 10.3, fig. 6-9;
Figure: 10.1
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| Was used in synonym list of: |
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| References: |
Bolli,H.M. (1959): Planktonic foraminifera from the Cretaceous of Trinidad, B.W.I. . Bulletins of American Paleontology Vol. 39 p. 257-277
Longoria,J.F. (1974): Stratigraphic, morphologic and taxonomic studies of Aptian planktonic Foraminifera . Revista Espanola de MicropaleontologíaNo extraord p. 1-107
Masters,B.A. (1977): Mesozoic Planktonic Foraminifera. In: Oceanic Micropalaeontology Eds: Ramsay, A.T.S. p. 301-731
Gorbatchik,T.N. (1986): Jurassic and Early Cretaceous planktonic foraminifera of the south of the USSR [in Russian]. p. 239
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
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
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