Citation: Contusotruncana contusa (Cushman, 1926)Taxonomic rank: speciesBasionym: Pulvinulina arca var. contusaSynonyms: Globotruncana contusa galeoidis; Globotruncana linnei var. caliciformis
Type images:
holotype: P. arca contusa
Original description: Variety differing from the typical in the greater size, much greater elevation of the spire on the dorsal side, and particularly striking the concave appearance of the chambers on the dorsal side, those of one coil coming in line with preceding ones so that the entire test develops something of a pyramidal form.
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 R. fructicosa zone (69.27-70.14Ma, base in Maastrichtian stage). Data source: [copied from Chronos database]
Plot of range and occurrence data:
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Almogi-Labin, A., Reiss, Z & Caron, M. (1986). Senonian globotruncanidae from Israel. Eclogae Geologicae Helvetiae. 79(3): 849-895. gsO
Cushman, J. A. (1926c). Some foraminifera from the Mendez shale of Eastern Mexico. Contributions from the Cushman Laboratory for Foraminiferal Research. 2(1): 16-24. gs
Huber, B. T., Tur, N., Self-Trail, J. & MacLeod, K. G. (2022a). Calcareous plankton biostratigraphic fidelity and species richness during the last 10 m.y. of the Cretaceous at Blake Plateau, subtropical North Atlantic. Cretaceous Research. 131: 1-42. gs
Pessagno, E. A. (1967). Upper Cretaceous planktonic foraminifera from the western Gulf Coastal Plain. Palaeontographica Americana. 5: 245-445. gsO
Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. gs
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. 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. gsO
Contusotruncana contusa compiled by the pforams@mikrotax project teamviewed: 23-1-2025
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Postuma 1971 p031-4.JPG
Pessagno 1967 pl75 18-20.JPG
Pessagno 1967 pl77 04-6.JPG
Pessagno 1967 pl77 07-9.JPG
Pessagno 1967 pl78 06-8.JPG
Pessagno 1967 pl78 09-11.JPG
Pessagno 1967 pl92 10-12.JPG
Postuma 1971 p031-7.JPG
Huber et al 2022 CR 21 07.jpg
Huber et al 2022 CR 21 10.jpg
Robaszynski et al 1983_376f1-18.JPG
Robaszynski et al 1983_37f2-18.JPG
ODP Site 1049-18.JPG
Smith and Pessagno 1973_21f1-3-18.JPG
Almogi-Labin et al 1986_9f6-8-18.JPG
Pessagno 1967 pl96 11.JPG
Pessagno 1967 pl96 13.JPG
Pessagno 1967 pl96 14.JPG
Pessagno 1967 pl96 15.JPG
Pessagno 1967 pl96 16.JPG
Robaszynski et al 1983_36f2-18.JPG
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