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| Anonymous: Unedited TaxonConcept data | ||||||
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Subspecies Globigerina ciperoensis angustiumbilicata Bolli 1957 | ||||||
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| Diagnosis / Definition: | ||||||
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Bolli (1957): Shape of test very low trochospiral; equatorial periphery distinctly lobate, axial periphery rounded. Wall calcareous, perforate, surface smooth or very finely pitted. Chambers spherical; about 12, arranged in about 2 1/2 whorls; the 4-5 chambers of the last whorl increase moderately to fairly rapidly in size. Sutures on spiral side depressed, radial; on umbilical side depressed, radial. Umbilicus small. Aperture a medium to low arch; interiomarginal, umbilical, often with a thin lip. Coiling random. Largest diameter of holotype 0.24 mm. |
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| Discussion / Comments: | ||||||
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Bolli (1957): Globigerina ciperoensis angustiumbilicata, new subspecies, is distinguished from G. ciperoensis ciperoensis by having a small umbilicus. The aperture, which is umbilical in position, may in some specimens show a tendency towards an umbilical extraumbilical position. |
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| Synonym list: | ||||||
| Bolli (1957): 1957 Globigerina ciperoensis angustiumbilicata Bolli. - Bolli : p. 273 pl. 36, figs. 6a-b
1957 Globigerina ciperoensis angustiumbilicata Bolli. - Bolli : p. 109 pl. 22, figs.12a-13c
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| Was used in synonym list of: | ||||||
| References: | ||||||
Bolli,H.M. (1957): Bolli,H.M. (1957): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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