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Species Globorotalia trinidadensis Bolli 1957 | ||||||
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| Diagnosis / Definition: | ||||||
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Bolli (1957): Shape of test very low trochospiral, inflated; equatorial periphery lobate; axial periphery rounded. Wall calcareous, perforate, surface smooth, in early chambers often slightly rugose. Chambers globular; 14 18, arranged in 2 2 1/2 whorls, the 5 7 chambers of the last whorl increasing slowly in size. Sutures on spiral side radial, depressed; on umbilical side radial, depressed. Umbilicus fairly wide, open. Aperture a low arch, with a thin, liplike flap in well preserved specimens; interiomarginal, extraumbilical umbilical. Coiling random. Largest diameters of figured types 0.40 0.43 mm. |
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| Discussion / Comments: | ||||||
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Bolli (1957): Globorotalia trinidadensi8 Bolli, new species, differs from G. pseudobulloides (Plummer) in its larger size and in having more chambers in the final whorl. Early chambers often show a rugose surface. |
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| Systematics: | ||||||
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20 Genus Globorotalia Species Globorotalia quadrata Species Globorotalia trinidadensis Species Globorotalia velascoensis 32 Ordo Foraminiferida Familia Globorotaliidae Genus Globorotalia Species Globorotalia trinidadensis |
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| Synonym list: | ||||||
| Bolli (1957): 1957 Globorotalia trinidadensis Bolli. - Bolli : pl. 16, figs. 19-23 new species
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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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