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Species Protentella prolixa Lipps 1964 | ||||||
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| Diagnosis / Definition: | ||||||
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Kennett & Srinivasan (1983): Test small, almost planispiral, involute, biumbilicate, equatorial periphery strongly lobulate; axial periphery broadly rounded; chambers initially spherical, later becoming ovate to radially elongate, five rapidly enlarging chambers in the final whorl; sutures radial, depressed; surface with regular reticulate pattern of ridges forming circular to subcircular or subhexagonal pore pits. Aperture basal, nearly equatorial, rather high arch, bordered by a distinct thick lip. |
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| Discussion / Comments: | ||||||
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Kennett & Srinivasan (1983): P. prolixa resembles Clavatorella bermudezi but differs in its somewhat smaller size, its more planispiral rather than trochospiral adult test, and its somewhat more thick- ened apertural lip. Van Eijden & Smit (1991): Remarks. Although P. prolixa is reportedly restricted to the upper Miocene and the Pliocene, we found specimens indistinguishable from this species in the upper Oligocene of Sites 757 and 758. |
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| Systematics: | ||||||
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32 Familia Globorotaliidae Genus Protentella Species Protentella prolixa |
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| Synonym list: | ||||||
| Kennett & Srinivasan (1983): 1964 Protentella prolixa Lipps. - Lipps : p.124 pl 2 figs 8a-9c
Van Eijden & Smit (1991): 1964 Protentella prolixa Lipps. - Lipps : p.124 pl. 2, figs. 8-9
1991 Protentella prolixa Lipps. - Van Eijden & Smit : p.123 pl. 5, figs. 11-12
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| References: | ||||||
Lipps,J.H. (1964): Kennett,J. and Srinivasan,M.S. (1983): Van Eijden,A.J.M. and Smit,J. (1991): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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