Nannotax3 - ntax_cenozoic - Scyphosphaera campanula

Citation: Scyphosphaera campanula Deflandre 1942

Basionym: Scyphosphaera cylindrica Kamptner, 1955

Synonyms: Scyphosphaera cylindrica Kamptner, 1955 sensu Young 1998

Variants:

Scyphosphaera penna Kamptner, 1955 - collar absent but upper part of walls flaring
Scyphosphaera cylindrica Kamptner, 1955 - collar absent

Taxonomic discussion: Young (1998) termed this taxon S. cylindrica but the name S. campanula Deflandre 1942 has priority and most forms show a flaring collar and so are closer to the holotype of Deflandre. [JRy 2016]
S. cylindrica has been used in the Palaeogene, but mostly for specimens markedly taller than in the original description so an alternative identification such as S. columella might be more appropriate

Distinguishing features:
Parent taxon (Scyphosphaera): Coccospheres with Pontosphaera-like body coccoliths and equatorial coccoliths with rims elevated into vase-like structures (lopadoliths).
This taxon: Squat, parallel sided, wide opening, almost square in profile, usually with weak flaring collar

Geological Range:
Last occurrence (top): within NN18 zone (1.93-2.39Ma, top in Gelasian stage). Data source: Young 1998
First occurrence (base): within NP12 zone (50.50-53.70Ma, base in Ypresian stage). Data source: Siesser, 1998

References:

Deflandre, G. (1942a). Coccolithophoridés fossiles d'Oranie. Genres Scyphosphaera Lohmann et Thorosphaera Ostenfeld. Bulletin de la Société d'Histoire Naturelle de Toulouse. 77: 125-137. gs

Kamptner, E. (1955). Fossile Coccolithineen-Skelettreste aus Insulinde. Eine mikropaläontologische Untersuchung. Verhandelingen der Koninklijke Nederlandse Akademie van Wetenschappen. ser 2, 50: 1-105. gs

Müller, C. (1974). Calcareous nannoplankton, Leg 25 (Western Indian Ocean). Initial Reports of the Deep Sea Drilling Project. 25: 579-633. gs V O

Samtleben, C. (1978). Pliocene-Pleistocene coccolith assemblages from Sierra Leone Rise - Site 366, Leg 41. Initial Reports of the Deep Sea Drilling Project. 41(16): 913-931. gs V O

Siesser, W. G. (1998). Calcareous nannofossil Genus Scyphosphaera: structure, taxonomy, biostratigraphy, and phylogeny. Micropaleontology. 44(4): 351-384. gs

Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 225-265. gs V O

Scyphosphaera campanula

References:

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