Daughter taxa (time control age-window is: 0-800Ma) | ||||
Globigerinatella insueta | ||||
Globigerinatella sp. |
The strongly embracing final chamber and areal and sutural supplementary apertures provides a superficial resemblance with Orbulina. However, it distinctly differs from Orbulina in surface ultrastructure in the character of the areal apertures, which are surrounded by lips, and in its relatively smaller test size. [Kennett & Srinivasan 1983]
Catalog entries: Globigerinatella
Distinguishing features:
Parent taxon (Globigerinitidae): Microperforate
This taxon: globular test, final chamber embraces the earlier spiral part; numerous areal and supplementary apertures
Geographic distribution
Phylogenetic relations
Most likely ancestor: Globigerinita - at confidence level 3 (out of 5). Data source: Kennett & Srinivasan 1983, fig 25.
Geological Range:
Last occurrence (top): at top of M6 zone (100% up, 14.2Ma, in Langhian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within M3 zone (17.54-19.30Ma, base in Burdigalian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Primary source for this page: Kennett & Srinivasan 1983, p.228
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 Cushman, J. A. & Stainforth, R. M. (1945). The foraminifera of the Cipero Marl Formation of Trinidad, British West Indies. Cushman Laboratory for Foraminiferal Research, Special Publication. 14: 1-75. gs Kennett, J. P. & Srinivasan, M. S. (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania. 1-265. gsReferences:
Globigerinatella compiled by the pforams@mikrotax project team viewed: 10-12-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=104039 Go to Archive.is to create a permanent copy of this page - citation notes |