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| Anonymous: Unedited TaxonConcept data | ||||||
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Species Globorotalia (Truncorotalia) cavernula Bé 1967 | ||||||
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| Diagnosis / Definition: | ||||||
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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. |
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| Discussion / Comments: | ||||||
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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. |
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| Kennett & Srinivasan (1983): 1967 Globorotalia cavernula Bé. - Bé : p.128 pl 10 figs 1-6
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| References: | ||||||
Bé,A.W.H. (1967): Kennett,J. and Srinivasan,M.S. (1983): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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