Taxonomy
Original description: "This species differs from G. arca in the fewer chambers in the whorl, flatter dorsal side, typically more convex ventral side, more definitely oblique sides to the chambers on the ventral side, and differently shaped chambers."
Entries in the Catalog of original descriptions: Globotruncana mariei
Character matrix
test outline: | Lobate | chamber arrangement: | Trochospiral | edge view: | Equally biconvex | aperture: | Umbilical |
sp chamber shape: | Petaloid | coiling axis: | Low | periphery: | Double keel | aperture border: | Tegilla |
umb chbr shape: | - | umbilicus: | Wide | periph margin shape: | Subangular | accessory apertures: | Intralaminal |
spiral sutures: | Raised beaded | umb depth: | Deep | wall texture: | Finely pustulose | shell porosity: | - |
umbilical or test sutures: | Raised beaded | final-whorl chambers: | 4.5-5.5 | N.B. These characters are used for advanced search. N/A - not applicable |
Geological Range:
Last occurrence (top): within G. gansseri zone (71.73-73.80Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): within G. elevata zone (79.33-83.65Ma, base in Campanian stage). Data source: [copied from Chronos database]
Plot of range and occurrence data:
Banner, F. T. & Blow, W. H. (1960a). Some primary types of species belonging to the superfamily Globigerinaceae. Contributions from the Cushman Foundation for Foraminiferal Research. 11: 1-41. gs O Robaszynski, F., Caron, M., Gonzales Donoso, J. M., Wonders, A. A. H. & the European Working Group on Planktonic Foraminifera (1984). Atlas of Late Cretaceous globotruncanids. Revue de Micropaléontologie. 26(3-4): 145-305. gsReferences:
![]() |
Globotruncana mariei compiled by the pforams@mikrotax project team viewed: 16-2-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=110166 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