Nannotax3 - ntax_main - Prediscosphaera columnata

Citation: Prediscosphaera columnata (Stover, 1966) Perch-Nielsen, 1984

Basionym: Deflandrius columnatus Stover, 1966

Synonyms:

Prediscosphaera [Deflandrius] avitus (Black, 1973) Perch-Nielsen, 1984;
Prediscosphaera [Deflandrius] cantabrigensis (Black, 1967) Reinhardt, 1970;

Distinguishing features:
Parent taxon (P. columnata group): Circular Prediscophaera species
This taxon: Circular to sub-circular, small; narrow inner-rim cycle

A small, circular to subcircular Prediscosphaera species [described by Stover (1966, p. 141) as circular to slightly elliptical (5-7 µm)], in which the outer distal cycle is broad and the inner cycle very narrow; central area axial cross bars support a typical Prediscosphaera spine.
The first appearing, late Aptian forms are small (typically 4-5 µm) and subcircular and most likely evolved from small Prediscosphaera cf. S. spinosa (Bramlette & Martini, 1964) Gartner, 1968, which appears likely to be the oldest representative of the genus. Circular forms become more common and eventually appear to replace the subcircular coccoliths (Perch-Nielsen, 1979; Kennedy et al., 2000). Size also increases and spines become tall and more robust, and specimens are commonly observed in side view.

Geological Range:
Notes: First occurrence is used as base for zones BC23, NC8 and CC8
Last occurrence (top): within Turonian Stage (89.39-93.90Ma, top in Turonian stage). Data source: Burnett 1998
First occurrence (base): at base of BC23 zone (0% up, 113.2Ma, in Albian stage). Data source: Bown et al. 1998 - zonal marker

References:

Black, M. (1967). New names for some coccolith taxa. Proceedings of the Geological Society of London. 1640: 139-145. gs

Black, M. (1973). British Lower Cretaceous Coccoliths. I-Gault Clay (Part 2). Palaeontographical Society Monograph. 127: 49-112. gs

Bown, P. R. (2001). Calcareous nannofossils of the Gault, Upper Greensand and Glauconitic Marl (Middle Albian-Lower Cenomanian) from the BGS Selborne boreholes, Hampshire. Proceedings of the Geologists' Association. 112: 223-236. gs

Bown, P. R. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs O

Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Lower Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 86-131. gs O

Bown, P. R., Gibbs, S. J., Sheward, R., O’Dea, S. & Higgins, D. (2014). Searching for cells: the potential of fossil coccospheres in coccolithophore research. Journal of Nannoplankton Research. 34(S): 5-21. gs

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 132-199. gs O

Gale, A. S., Kennedy, W. J., Burnett, J. A., Caron, M. & Kidd, B. E. (1996). The Late Albian to Early Cenomanian succession at Mont Risou, near Rosans (Drôme, SE France): an integrated study (ammonites, inoceramids, planktonic foraminifera, nannofossils, oxygen and carbon isotopes). Cretaceous Research. 17: 515-606. gs

Gale, A. S., et al. (2011). The uppermost Middle and Upper Albian succession at the Col de Palluel, Hautes-Alpes, France: An integrated study (ammonites, inoceramid bivalves, planktonic foraminifera, nannofossils, geochemistry, stable oxygen and carbon isotopes, cyclostratigraphy). Cretaceous Research. 32: 59-130. gs

Kanungo, S., Bown, P. R. & Gale, A. S. (2020). Cretaceous (Albian-Turonian) calcareous nannofossil biostratigraphy of the onshore Cauvery Basin, southeastern India. Cretaceous Research. 118 [2021]: 1-22. gs

Kennedy, W. J., et al. (2000). Integrated stratigraphy across the Aptian-Albian boundary in the Marnes Bleues, at the Col de Pre _-Guittard, Arnayon (Drome), and at Tartonne (Alpes-de-Haute-Provence), France: a candidate Global Boundary Stratotype Section and Boundary Point for the base of the Albian Stage. Cretaceous Research. 21: 591-720. gs

Lambert, B. (1993). Nannofossiles calcaires de l'Albien supérieur et du Vraconnien du Cameroun méridional (Deuxième Partie). Cahiers de Micropaléontologie. 8(2): 183-225. gs

Mai, H. (1995). Uncoated, low-voltage SEM analysis of both proximal and distal views of the same coccoliths. Journal of Nannoplankton Research. 17(1): 9-13. gs

Perch-Nielsen, K. (1979). Calcareous nannofossils from the Cretaceous between the North Sea and the Mediterranean. In, Weidmann, J. (ed.) Aspekte der Kreide Europas. International Union of Geological Sciences Series A . 6: 223-272. gs O

Perch-Nielsen, K. (1984). Validation of new combinations. INA Newsletter. 6(1): 42-46. gs

Püttmann, T., Mutterlose, J., Kaplan, U. & Scheer, U. (2019). Reworking of Cenomanian ammonites decoded by calcareous nannofossils (southern Münsterland Basin, northwest Germany). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 291(1): 1-17. gs

Reinhardt, P. (1970). Synopsis der Gauttungen und Arten der mesozoischen Coccolithen und anderer kalkiger Nannofossilien. I. Freiberger Forschungshefte. C260: 5-32. gs

Stover, L. E. (1966). Cretaceous coccoliths and associated nannofossils from France and the Netherlands. Micropaleontology. 12(2): 133-167. gs

Thomsen, E. (1987). Lower Cretaceous calcareous nannofossil biostratigraphy in the Danish Central Trough. Danmarks Geologiske Undersøgelse. 20: 1-89. gs

Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs O

Prediscosphaera columnata

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