Postuma 1971 p041-4.JPG
Pessagno 1967 pl79 02-4.JPG
Pessagno 1967 pl83 02-4.JPG
Pessagno 1967 pl83 05-7.JPG
Pessagno 1967 pl83 08-10.JPG
Postuma 1971 p041-7.JPG
Tanzania CN02-66~b.JPG
Smith and Pessagno 1973_17f1-4-66.JPG
DSDP Site 390-66.JPG
Almogi-Labin et al 1986_4f3- 7-66.JPG
Pessagno 1967 pl94 06.JPG
Pessagno 1967 pl95 08.JPG
Pessagno 1967 pl95 09.JPG
Pessagno 1967 pl95 12.JPG
Pessagno 1967 pl95 13-14.JPGTaxonomy
holotype: G. aegyptiacaOriginal description: "Test planoconvex, dorsal side always flat, ventral side convex. Periphery acute, lobulate, single keeled in most specimens but occasionally with a double keel, sometimes spinose. Chambers, particuarly the last ones, petalid, four in the last whorl. Sutures distinct, radial depressed ventrally; beaded, raised, strongly curved dorsally. Aperture ventral, large, arched, at base of last chamber, opening into wide umbilicus. Wall finely perforate.
Entries in the Catalog of original descriptions: Globotruncana aegyptiaca, Globotruncana ansarii, Globotruncana aegyptiaca duwi, Globotruncana gagnebini, Globotruncana nakkadyi, Globotruncana zagros, Rugotruncana skewesae
Character matrix
| test outline: | Lobate | chamber arrangement: | Trochospiral | edge view: | Planoconvex | aperture: | Umbilical |
| sp chamber shape: | Petaloid | coiling axis: | Low | periphery: | Double keel | aperture border: | Tegilla |
| umb chbr shape: | Petaloid | umbilicus: | Wide | periph margin shape: | Subangular | accessory apertures: | Intralaminal |
| spiral sutures: | Raised beaded | umb depth: | Deep | wall texture: | Finely pustulose | shell porosity: | Finely Perforate: 1-2.5µm |
| umbilical or test sutures: | Moderately depressed | final-whorl chambers: | 3-5 | N.B. These characters are used for advanced search. N/A - not applicable | |||
Geological Range:
Last occurrence (top): within A. mayaroensis zone (67.64-69.27Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): at base of G. aegyptiaca zone (0% up, 74.2Ma, in Campanian stage). Data source: zonal marker (from Timescale Creator)
Plot of range and occurrence data:
Almogi-Labin, A., Reiss, Z & Caron, M. (1986). Senonian globotruncanidae from Israel. Eclogae Geologicae Helvetiae. 79(3): 849-895. gs O Nakkady, S. E. (1950). A new foraminiferal fauna from the Esna shales and Upper Cretaceous chalk of Egypt. Journal of Paleontology. 24(6): 675-692. gs Pessagno, E. A. (1967). Upper Cretaceous planktonic foraminifera from the western Gulf Coastal Plain. Palaeontographica Americana. 5: 245-445. gs O Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. gs Smith, C. C. & Pessagno, E. A. (1973). Planktonic foraminifera and stratigraphy of the Corsicana formation (Maestrichtian) North-central Texas. Cushman Foundation for Foraminiferal Research, Special Publication. 12: 1-67. gs OReferences:
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Globotruncana aegyptiaca compiled by the pforams@mikrotax project team viewed: 26-1-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=110153 Go to Archive.is to create a permanent copy of this page - citation notes |
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