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Species Globorotalia (Fohsella) praefohsi Blow & Banner 1966 | ||||||
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| Diagnosis / Definition: | ||||||
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Kennett & Srinivasan (1983): Test low trochospiral, equatorial periphery slightly lobulate, axial periphery acute with a partly developed keel on last two chambers; chambers compressed, six to seven in the final whorl, increasing slowly in size; sutures on spiral side curved, gently raised, on umbilical side curved to radial, depressed; surface distinctly and uniformly perforate; umbilicus narrow, aperture umbilicalextraumbilical with a low arch bordered by a prominent lip. |
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| Discussion / Comments: | ||||||
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Kennett & Srinivasan (1983): Gr. (F.) praefohsi differs from Gr. (F.)peripheroacuta in possessing a keel (imperforate carina) in the last one or two chambers of the final whorl. It differs from Gr. (F.) fohsi fohsi in exhibiting a keel only on the last few chambers. The early chambers of the final whorl are noncarinate. Thus Gr. (F.) praefohsi is a partly keeled form between nonkeeled intermediate Gr. (F.) peripheroacuta and the fully keeled Gr. (F.) fohsi fohsi. |
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| Kennett & Srinivasan (1983): 1966 Globorotalia (Globorotalia) praefohsi Blow & Banner. - Blow & Banner : p.295 pl1 figs 3-4, pl 2 figs 6-10, 10-11
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| References: | ||||||
Blow,W.H. and Banner,F.T. (1966): Kennett,J. and Srinivasan,M.S. (1983): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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