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Globorotalia (Globorotalia) plesiotumida Blow & Banner 1965 from: Kennett, J.Srinivasan, M.S. (1983): Neogene Planktonic Foraminifera - A Phylogenetic Atlas.
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Species Globorotalia (Globorotalia) plesiotumida Blow & Banner 1965


Alternative name:
Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test lenticular trochospire, biconvex, equatorial periphery ovate, slightly lobulate; axial periphery acute with a distinct keel; generally six chambers in the final whorl, increasing regularly in size as added, final chamber noticeably projecting; sutures on spiral side limbate, slightly raised, oblique to curved, merging into keel; on umbilical side radial, depressed; surface smooth, densely perforate, pustulate on umbilical shoulders; umbilicus narrow, aperture a low arch, bordered by a lip, interiomarginal, umbilical-exti-aumbilical.
Discussion / Comments:
Kennett & Srinivasan (1983):
Gr. (Gr.) plesiotumida is distinguished from Gr. (Gr.) tumida tumida by its smaller size and less tumid test.
Synonym list:
Kennett & Srinivasan (1983):
1965 Globorotalia (Globorotalia) tumida plesiotumida Blow & Banner. - Banner & Blow : p.1353 2a-c
Was used in synonym list of:
References:

Banner,F.T. and Blow,W.H. (1965):
Two new taxa of the Globorotaliinae (Globigerinacea, Foraminfera) assisting determination of the late Miocene/middle Miocene boundary . Nature Vol. 207

Kennett,J. and Srinivasan,M.S. (1983):
Neogene Planktonic Foraminifera - A Phylogenetic Atlas.

Anonymous: Unedited TaxonConcept data
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