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Species Globorotalia minutissima Bolli 1957


Alternative name:
Globorotalia (Turborotalia) minutissima Bolli 1957
Diagnosis / Definition:
Bolli (1957):
Shape of test very low trochospiral; equatorial periphery lobate; axial periphery rounded. Wall calcareous, very finely perforate, surface smooth. Chambers ovate; 10-12, arranged in about 2 whorls; the 5 chambers of the last whorl increase moderately in size. Sutures on spiral side radial to slightly curved, depressed; on umbilical side radial, depressed. Umbilicus small, shallow. Aperture a narrow slit, often with a lip or rim; interiomarginal, umbilical extraumbilical. Coiling random. Largest diameter of holotype 0.2 mm.
Discussion / Comments:
Bolli (1957):
Globorotalia minutissima, new species, is distinguished from other Globorotalia species of similar shape (e. g., G. mayeri Cushman and Ellisor, and G. obesa, new species) by its very small size and smooth surface.
Srinivasan (1975):
Lipps (1964) placed this species in Eoglobigerina rather than Globororalia because of its smooth surface texture, spherical to oval chambers, and modified terminal chambers.
Systematics:

21
 Species Globorotalia minutissima
Synonym list:
Bolli (1957):
1957 Globorotalia minutissima Bolli. - Bolli : pl. 29, figs. 1a-c new species
Srinivasan (1975):
1957 Globorotalia minutissima Bolli. - Bolli : p.119 pl. 29; fig. 1a-c
1975 Globorotalia minutissima Bolli. - Srinivasan : p.149 pl. 4; fig. 5
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

Srinivasan,M.S. (1975):
Middle Miocene Planktonic Foraminifera from the Hut Bay Formation, Little Andaman Island, Bay of Bengal . Micropaleontology Vol. 21(2) p. 133-150
Anonymous: Unedited TaxonConcept data
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