Taxonomy
Original description: "Pronounced petaloid periphery as in G. citae and G. petaloidea subpetaloidea; chamber subglobular, sutural elevations completely disappearing or marked sometimes by more frequent tubercles, especially along the margin of the early chambers. Ther terminal face is as usual mor or less triangular with a faint edge toward the umbilical face. The test is dextrally coiled. A fine umbilical lip appears to fringe the last chamber and extends somewhat toward the periphery."
Entries in the Catalog of original descriptions: Globotruncana (Rugoglobigerina) petaloidea, Globotruncanella kefennsoura, Rugoglobigerina jerseyensis, Globotruncana (Rugoglobigerina) petaloidea subpetaloidea
Character matrix
test outline: | Lobate | chamber arrangement: | Trochospiral | edge view: | Spiroconvex | aperture: | Umbilical-extraumbilical |
sp chamber shape: | Petaloid | coiling axis: | Low | periphery: | Imperforate band | aperture border: | Thin porticus |
umb chbr shape: | Petaloid | umbilicus: | Narrow | periph margin shape: | Subangular | accessory apertures: | None |
spiral sutures: | Moderately depressed | umb depth: | Deep | wall texture: | Finely pustulose | shell porosity: | Finely Perforate: 1-2.5µm |
umbilical or test sutures: | Moderately depressed | final-whorl chambers: | 4-4.5 | 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): within G. gansseri zone (71.73-73.80Ma, base in Campanian stage). Data source: [copied from Chronos database]
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 Gandolfi, R. (1955). The genus Globotruncana in northeastern Colombia. Bulletins of American Paleontology. 36: 1-118. gs Pessagno, E. A. (1967). Upper Cretaceous planktonic foraminifera from the western Gulf Coastal Plain. Palaeontographica Americana. 5: 245-445. gs O 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:
Globotruncanella petaloidea compiled by the pforams@mikrotax project team viewed: 12-1-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=110184 Go to Archive.is to create a permanent copy of this page - citation notes |
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