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Species Globigerina (Globigerina) umbilicata Orr & Zaitzeff 1971 | ||||||
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| Diagnosis / Definition: | ||||||
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Kennett & Srinivasan (1983): Test medium to large, low trochospiral; chambers spherical to subspherical, increasing slowly in size as added, five to six in the final whorl; sutures distinctly depressed, often with a reduced final chamber (kummerform). Surface similar to Gg. (Gg.) bulloides. Umbilicus very large, deep. Aperture large, umbilical, with a thin lip. |
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| Discussion / Comments: | ||||||
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Kennett & Srinivasan (1983): This species differs from Gg. (Gg.) bulloides in exhibiting one or two more chambers in the final whorl distinctly incised sutures on the spiral side, and more conspicuous umbilicus. Dominantly a temperate species. |
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| Systematics: | ||||||
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3 Classis Foraminifera Genus Beella Genus Globigerina Species Globigerina (Globigerina) umbilicata |
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| Kennett & Srinivasan (1983): 1971 Globigerina umbilicata Orr & Zaitzeff. - Orr & Zaitzeff : p.18 pl 1 figs 1-4
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| References: | ||||||
Orr,W.N. and Zaitzeff,J.B. (1971): Kennett,J. and Srinivasan,M.S. (1983): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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Taxon relations
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