Bolli1957 pl16 19-21.JPG
Bolli1957 pl16 22-23.JPG
This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
Bolli1957 pl16 19-21.JPG
Bolli1957 pl16 22-23.JPGLinked specimens: USNM-5045 USNM-5044 USNM-5046
Current identification/main database link: Praemurica inconstans (Subbotina 1953)
Original Description
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 2-2½ 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
Size: Largest diameters of figured types 0.40-0.43 mm.
Extra details from original publication
Remarks: Globorotalia trinidadensis 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.
Bolli, H. M. (1957d). The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin. 215: 61-82. gs V OReferences:
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Globorotalia trinidadensis compiled by the pforams@mikrotax project team viewed: 5-3-2021
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