Globigerina foliata Bolli 1957 from: Bolli, H.M. (1957): Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I.. In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123 . |
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Species Globigerina foliata Bolli 1957 |
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Diagnosis / Definition: |
Bolli (1957):
Shape of test low trochospiral; equatorial periphery strongly lobate. Wall calcareous, perforate, surface very finely pitted. Chambers spherical; 8 to 10, arranged in about 2 whorls; the 4 chambers of the last whorl increase very rapidly in size. Sutures on spiral side radial, deeply depressed; on umbilical side radial, deeply depressed. Umbilicus fairly small. Aperture a medium to low arch, often with a thin lip; interiomarginal, umbilical. Coiling random. Largest diameter of holotype 0.56 mm. |
Discussion / Comments: |
Bolli (1957):
Globigerina foliata, new species, is characterized by having almost discrete spherical chambers. The sutures between the four chambers of the last whorl are deeply incised.
Quilty (1976):
As can be seen on the figured specimen, the surface of the
test is very different from that figured by Blow (1969, pl. 16, fig. 2, 3). The pores seem much more widely spaced and "pustules" are present between the perforations. The significance of this difference is not clear. |
Synonym list: |
Bolli (1957):
Quilty (1976):
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References: |
Bolli,H.M. (1957): Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I.. In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123
Quilty,P.G.. (1976): Planctonic foraminifera DSDP Leg 34- Nazca Plata . DSDP initial reports Vol. 34
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