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Globorotalia (Truncorotalia) cavernula Bé 1967 from: Kennett, J.Srinivasan, M.S. (1983): Neogene Planktonic Foraminifera - A Phylogenetic Atlas.
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Species Globorotalia (Truncorotalia) cavernula Bé 1967


Alternative name:
Diagnosis / Definition:
Kennett & Srinivasan (1983):
Test small, very low trochospiral, spiral side almost flat, umbilical side distinctly convex; equatorial periphery ovate, slightly lobulate; axial periphery sharply angled with thin keel; chambers angular to rhomboid, five to six in the final whorl, increasing rapidly in size, the final chamber showing a somewhat truncate shape. Sutures on both spiral and umbilical side curved and slightly depressed; surface smooth, finely perforate, few pustules on umbilical shoulder; umbilicus wide and deep, bordered by angled umbilical shoulder; aperture interiomarginal, umbilical-extraumbilical, a high rounded arch with a distinct rim.
Discussion / Comments:
Kennett & Srinivasan (1983):
Gr. (T.) cavernula is distinguished from Gr. (T.) truncatulinoides by its smaller size, very wide and open umbilicus, and smooth, finely perforate test.
Synonym list:
Kennett & Srinivasan (1983):
1967 Globorotalia cavernula Bé. - Bé : p.128 pl 10 figs 1-6
References:

Bé,A.W.H. (1967):
Globorotalia cavernula, a new species of planktonic foraminifera from the Subantarctic Pacific Ocean . Contributions from the Cushman Foundation for Foraminiferal Research Vol. 18

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

Anonymous: Unedited TaxonConcept data
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