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Species Globigerina yeguaensis Weinzierl & Applin 1929 | ||||||
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Bolli (1957): There is considerable variation in the specimens regarded as belonging to Globigerina yeguaensis. All forms are distinctly lobate, display a fairly open umbilicus and have the apertures of the last, occasionally also of earlier chambers protected by a fragile lip. In typical forms the 3-3 1/2 chambers of the last whorl increase rapidly in size (fig. 14a-c); in others with 4 chambers the increase is more moderate (figs. 15a-c). G. venezuelana Hedberg is a more compact form than G. yeguaensis. It has a less open umbilicus and shows no apertural lips. G. yeguaensis has not been seen with a rudimentary final chamber, a feature often present in G. venezuelana |
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| Was used in synonym list of: | ||||||
| References: | ||||||
Bolli,H.M. (1957): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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Taxon relations
Ranking (experimental) |
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