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Contusotruncana plicata


Classification: pf_mesozoic -> Globotruncanidae -> Contusotruncana -> Contusotruncana plicata
Sister taxa: C. contusa, C. fornicata, C. morozovae, C. patelliformis, C. plicata, C. plummerae, C. walfischensis, C. sp.,

Taxonomy

Citation: Contusotruncana plicata (White 1928, emended by Solakius and Salaj, 1985)
Rank: Species
Basionym: Globotruncana conica var. plicata
Synonyms: Globotruncana navarroensis

Type images:

Original description: "This form differs from Globotruncana conica in being fluted or having folds on the dorsal side, starting at or near the top and widening toward the base, causing the outline as seen from above, to appear fluted or polygonal. Diameter of type specimen, 0.8 mm.; thickness, 0.55 mm."

Entries in the Catalog of original descriptions: Globotruncana conica plicata, Globotruncana navarroensis

Geological Range:
Last occurrence (top): within A. mayaroensis zone (67.30-69.18Ma, top in Maastrichtian stage). Data source: [copied from Chronos database]
First occurrence (base): within R. fructicosa zone (69.18-70.14Ma, base in Maastrichtian stage). Data source: [copied from Chronos database]

Plot of occurrence data:

Dec 2017 - Plotting of Neptune data has been re-enabled on the Mesozoic pages following revision of the age-models in Neptune. The data is, however, still very sparse for the Early Cretaceous

Character matrix

test outline:Subcircularchamber arrangement:Trochospiraledge view:Spiroconvexaperture:Umbilical
sp chamber shape:Crescenticcoiling axis:Highperiphery:Double keelaperture border:Thick porticus
umb chbr shape:Crescenticumbilicus:Wideperiph margin shape:Subangularaccessory apertures:Intralaminal
spiral sutures:Moderately depressedumb depth:Deepwall texture:Finely pustuloseshell porosity:
umbilical or test sutures:Moderately depressedfinal-whorl chambers:4.0-5.0 N.B. These characters are used for advanced search. N/A - not applicable

References:

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. gs

Solakius, N. & Salaj, J. (1985). Foraminiferids from the Maastrichtian of Enfidaville, northeastern Tunisia. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 170(2): 229-241. gs

White, M. P. (1928). Some Index Foraminifera of the Tampico Embayment Area of Mexico. Journal of Paleontology. 2(3): 177-215. gs


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Contusotruncana plicata compiled by the pforams@mikrotax project team viewed: 26-9-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=110074 Go to Archive.is to create a permanent copy of this page - citation notes



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