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: London, UK; NHM (PM P 44511) London, UK; NHM (PM PF 44511)
Current identification/main database link: Globigerina officinalis Subbotina 1953
Original Description
Size:
Etymology:
Extra details from original publication
Remarks: This subspecies is distinguished from Globigerina praebulloides praebulloides principally by its smaller umbilicus, lower and more symmetrical aperture, slower rate of chamber enlargement and greater degree of embrace between its chambers. It is distinguished from Globigerina ouachitaensis ouachitaensis by its much smaller umbilicus which lacks a distinct quadrate shape, by its smaller aperture and by its relatively unflattened and distinctly hispid apertural face. It is distinguished from G. officinalis by its deeper umbilicus, symmetrical aperture, its more coarsely perforate and hispid test.
Stratigraphical range; This subspecies is widely distributed in both the Caribbean and East African regions. In the Lindi area it ranges from the Globigerina turritilina turritilina Zone, Upper Eocene, to the top of the Oligocene. Elsewhere in East Africa it occurs in beds of Aquitanian age. In Trinidad it ranges from the G. ampliapertura Zone to, at least, the upper Aquitanian Globigerinatella insueta Zone. It has been observed in the Aquitanian of Moulin de l'Eglise and Escornebeou, south-west France, and also in the Oligocene of Elmsheim and Offenbach, Germany. Batjes (1958) illustrated a form as G!obigerina globularis Roemer from the Oligocene of Belgium; this form seems to be the same as G. praebulloides leroyi. We consider G. globularis Roemer to be nomen dubium. Subbotina's specimen, referred by her to G. officinalis, came from the uppermost Eocene (Bolivina Zone) of the Caucasus and the Bolivina Zone may prove to be equivalent to the G. turritilina turritilina Zone of East Africa.
Blow, W. H. & Banner, F. T. (1962). The mid-Tertiary (Upper Eocene to Aquitanian) Globigerinaceae. In, Eames, F. E., Banner, F. T., Blow, W. H. & Clarke, W. J. (eds) Fundamentals of mid-Tertiary Stratigraphical Correlation. Cambridge University Press, Cambridge 61-151. gs Blow, W. H. (1969). Late middle Eocene to Recent planktonic foraminiferal biostratigraphy. In, Bronnimann, P. & Renz, H. H. (eds) Proceedings of the First International Conference on Planktonic Microfossils, Geneva, 1967. E J Brill, Leiden 380-381. gs Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (2006a). Taxonomy, biostratigraphy, and phylogeny of Eocene Globigerina, Globoturborotalita, Subbotina, and Turborotalita. In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 41(Chap 6): 111-168. gs OReferences:
Globigerina praebulloides leroyi compiled by the pforams@mikrotax project team viewed: 12-11-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=130608 Go to Archive.is to create a permanent copy of this page - citation notes |
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Comments