Prediscosphaera cretacea
Classification: Mesozoic -> Podorhabdales -> Prediscosphaeraceae -> Prediscosphaera -> P. cretacea group -> Prediscosphaera cretacea
Sister taxa: P. cretacea, P. desiderograndis, P. grandis, P. majungae, P. microrhabdulina, P. serrata,
Distinguishing features: Typical form, elliptical with diagonal cross but lacking other distinguishing features
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Taxonomy:
Citation: Prediscosphaera cretacea (Arkhangelsky, 1912) Gartner, 1968Rank: SpeciesBasionym: Coccolithophora cretacea Arkhangelsky, 1912Variants: Prediscosphaera cretacea ssp. lata Bukry 1969 - broad inner rim cycleSynonyms:
- Prediscosphaera cretacea cretacea (Arkhangelsky) Gartner, Bukry, 1969
- Prediscosphaera cretacea lata Bukry, 1969
- Deflandrius catinus Shumenko, 1969
- Rhabdolithus intercisus Deflandre in Deflandre & Fert 1954
- Prediscosphaera intercisa (Deflandre in Deflandre & Fert 1954) Shumenko, 1976
- Deflandrius cretaceus
- Deflandrius intercisus
- Prediscosphaera decorata Vekshina 1959
Farinacci & Howe catalog pages: Coccolithophora cretacea * Deflandrius catinus * Prediscosphaera cretacea lata * Prediscosphaera decorata * Rhabdolithus intercisus *
Distinguishing features: Typical form, elliptical with diagonal cross but lacking other distinguishing features
Size: 5-8 µm long
Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Lees & Bown 2005 - consistently present to end Cret
First occurrence (base): within BC27c subzone (100.07-100.54Ma, base in Albian stage). Data source: Burnett 1998
Plot of 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. Interpret with caution & read these notes
- Taxon plotted: Prediscosphaera cretacea, synonyms included - Deflandrius cretaceus; Deflandrius intercisus; Prediscosphaera cretacea; Prediscosphaera cretacea cretacea; Prediscosphaera cretacea lata; Prediscosphaera intercisa; Prediscosphaera intercisus; Prediscosphaera lata; Parent: P. cretacea group
References:Arkhangelsky, A.D., (1912). Upper Cretaceous deposits of east European Russia. Materialien zur Geologie Russlands, 25: 1-631.
Burnett, J.A., (1998). Upper Cretaceous. In: Bown, P.R. (Editor), Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publications Series. Chapman & Hall, London, pp. 132-199.
Deflandre, G. & Fert, C., (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie, 40: 115-176.
Gartner, S., (1968). Coccoliths and related calcareous nannofossils from Upper Cretaceous deposits of Texas and Arkansas. The University of Kansas Paleontological Contributions, Article 48 (Protista 1): 1-56.
Shumenko, S.I., (1976). Mesozoic calcareous nannoplankton of the European part of the USSR. Academy of Sciences of the USSR Paleontological Institute Scientific Council on the problem Evolutionary trends and patterns of animal and plant organisms. Nauka.
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Prediscosphaera cretacea compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-7-2018
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