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Species Globigerinoides immaturus Le Roy 1939 | ||||||
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| Diagnosis / Definition: | ||||||
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Kennett & Srinivasan (1983): Test low trochospiral, chambers spherical, three in the final whorl increasing moderately in size as added; sutures on both sides radial to gently curved, deeply depressed; surface distinctly cancellate; umbilicus narrow; primary aperture interiomarginal, umbilical with a low to medium arch; last few chambers show single supplementary sutural apertures opposite to the primary aperture. |
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| Discussion / Comments: | ||||||
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Kennett & Srinivasan (1983): Gs. immaturus is closely related to both Gs. triloba and Gs. sacculifer, and populations show complete gradations. Gs. immaturus differs from Gs. triloba in exhibiting a much less dominant final chamber and from Gs. sacculifer by the absence of a terminal, elongate, sacklike chamber. |
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| Synonym list: | ||||||
| Kennett & Srinivasan (1983): 1939 Globigerinoides sacculiferus var. immatura Le Roy. - Le Roy : p.263 pl 3 figs 19-21
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| References: | ||||||
Le Roy,L.W. (1939): Kennett,J. and Srinivasan,M.S. (1983): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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