Taxonomy:
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
Farinacci & Howe catalog pages: S. cylindrica * , S. penna * , S. campanula *
Search data:
LITHS: murolith, elliptical, cylindrical, hollow, CA: plate, pores, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent, |
Lith size: 8->12µm; Data source notes: lith height from ODs |
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
Plot of occurrence data:
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 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 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 References:
Scyphosphaera campanula compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 12-9-2024
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