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.
Linked specimens: USNM-5660 USNM-5659
Current identification/main database link: Paragloborotalia opima (Bolli, 1957)
Original Description
Size:
Extra details from original publication
Remarks: Globorotalia opima opima, new species, new subspecies, is distinguished from G. mayeri Cushman and EUisor by the greater thickness of the test and in having 4-5 chambers in the last whorl, instead of 5-6. The apertural lip, which is usually present in G. mayeri, is only occasionally seen ia the new subspecies. G. opima opima has a very restricted range whereas G. mayeri can be followed through most of the Cipero formation into the lower Lengua. G. opima opima differs from G. opima nana, new species, new subspecies, by its larger size. It has a more restricted stratigraphic range.
Bolli, H. M. (1957b). Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I. 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: 97-123. gs Leckie, R. M. et al. (2018). Taxonomy, biostratigraphy, and phylogeny of Oligocene and Lower Miocene Paragloborotalia and Parasubbotina. In, Wade, B. S., Olsson, R. K., Pearson, P. N., Huber, B. T. & Berggren, W. A. (eds) Atlas of Oligocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 46(Chap 5): 125-178. gs References:
Globorotalia opima opima compiled by the pforams@mikrotax project team viewed: 14-9-2024
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