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Species Globigerinella praesiphonifera Blow 1969 | ||||||
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Diagnosis / Definition: | ||||||
Kennett & Srinivasan (1983): Test low trochospiral, equatorial periphery lobulate; axial periphery broadly rounded; chambers inflated, subglobular, well separated from one another, five slowly enlarging chambers in the final whorl; sutures strongly curved, depressed; surface finely hispid, spinose with circular spine bases; umbilicus narrow, deep; aperture interiomarginal, umbilical-extraumbilical, without a lip or rim. |
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Discussion / Comments: | ||||||
Kennett & Srinivasan (1983): Ge. praesiphonifera differs from Ge. aequilateralis in that the trochospiral coil is maintained throughout and that the tendency toward planispirality is confined to the final whorl. This species is distinguished from Ge. obesa by an additional chamber in the final whorl and more lobulate periphery. |
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Synonym list: | ||||||
Kennett & Srinivasan (1983): 1969 Hastigerina siphonifera praesiphonifera Blow. - Blow : p.408 pl 54 figs 7-9
Vincent & Toumarkine (1990): 1969 Hastigerina (Hastigerina) siphonifera praesiphonifera Blow. - Blow : p. 408 pl. 54, figs. 7-9
1990 Globigerinella praesiphonifera Blow. - Vincent & Toumarkine : p. 796
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References: | ||||||
Blow,W.H. (1969): Kennett,J. and Srinivasan,M.S. (1983): Vincent,E. and Toumarkine,M. (1990): |
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Anonymous: Unedited TaxonConcept data | ||||||
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