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Species Globigerina (Zeaglobigerina) rubescens Hofker 1956 | ||||||
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| Diagnosis / Definition: | ||||||
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Kennett & Srinivasan (1983): Test small, trochospiral, equatorial periphery lobulate, chambers spherical to subspherical, four in the final whorl, increasing rapidly in size as added; sutures on both sides radial to slightly curved, gently depressed; surface distinctly cancellate; aperture small, rounded, bordered by a distinct rim, umbilical. |
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| Discussion / Comments: | ||||||
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Kennett & Srinivasan (1983): This species is distinguished from Gg. (Zg.) decoraperta by its very small test size and small circular aperture. Gg. (Zg.) rubescens seems to have evolved from Gg. (Zg.) decoraperta during the Middle Pliocene and may be the modern representative of the subgenus Zeaglobigerina. Hofker (1977) placed this species within Globoturborotalita, which may have priority over Zeaglobigerina if Gg. (Zg.) rubescens is phylogenetically linked with the Zeaglobigerina lineage. |
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| Kennett & Srinivasan (1983): 1956 Globigerina rubescens Hofker. - Hofker : p.234 pl 32 fig 26; pl 35 figs 18-21
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| References: | ||||||
Hofker,J. (1956): Kennett,J. and Srinivasan,M.S. (1983): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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