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Globorotalia (Truncorotalia) truncatulinoides d'Orbigny 1839 from: Kennett, J.Srinivasan, M.S. (1983): Neogene Planktonic Foraminifera - A Phylogenetic Atlas.
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Species Globorotalia (Truncorotalia) truncatulinoides d'Orbigny 1839


Alternative name:
Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test low trochospiral, planoconvex, equatorial periphery almost circular, axial periphery acute with a distinct keel, chambers five in the final whorl, increasing slowly in size as added; sutures on spiral side straight to gently curved, flush to slightly depressed; on umbilical side almost radial, depressed;surface finely perforate, pustulate on umbilical as well as on spiral side; umbilicus wide deep, aperture interiomarginal, extraumbilical-umbilical, a low arch bordered by a lip.
Discussion / Comments:
Kennett & Srinivasan (1983):
Gr. (T.) truncatulinoides is distinguished from Gr. (T.) tosaensis by the presence of a pronounced keel and a more open umbilicus (PI. 34, Fig. 2).
Synonym list:
Kennett & Srinivasan (1983):
1839 Rotalia truncatulinoides d'Orbigny. - d'Orbigny : p.132 pl 2 figs 25-27
Was used in synonym list of:
References:

d'Orbigny,A.D. (1839):
Foraminfères des Iles Canaries.
In: Histoire naturelle des Iles Canaries Vol. 2(2) Eds: Barker Webb, P.Berthelot, S.

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

Anonymous: Unedited TaxonConcept data
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