Nannotax3 - ntax_cenozoic - Scyphosphaera pulcherrima

Citation: Scyphosphaera pulcherrima Deflandre, 1942

Variants:

S. amphora Deflandre, 1942;
S. darraghi Rade, 1975;
S. halldalii Deflandre in Deflandre and Fert, 1954.

Distinguishing features:
Parent taxon (Scyphosphaera): Coccospheres with Pontosphaera-like body coccoliths and equatorial coccoliths with rims elevated into vase-like structures (lopadoliths).
This taxon: Opening wide and with well developed collar.

Geological Range:
Notes: LO has been used as a biostratigraphic marker in the Pleistocene (Gartner 1991, Styzen - see comment below)
Last occurrence (top): within NN19 zone (0.44-1.93Ma, top in Ionian stage). Data source: Young 1998
First occurrence (base): within NN6 zone (11.90-13.53Ma, base in Serravallian stage). Data source: Young 1998

References:

Deflandre, G. & Fert, C. (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie. 40: 115-176. gs

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

Gartner, S. (1991). A note on Gephyrocapsa caribbeanica and amphora-shaped Scyphosphaera. INA Newsletter. 13(3): 103-104. gs V O

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

Perch-Nielsen, K. (1977a). Albian to Pleistocene calcareous nannofossils from the Western South Atlantic, DSDP Leg 39. Initial Reports of the Deep Sea Drilling Project. 39: 699-823. gs O

Rade, J. (1975). Scyphosphaera evolutionary trends with special reference to eastern Australia. Micropaleontology. 21: 151-165. 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 V O

Comments (1)

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Mike Styzen (Noble Energy, US)

Pleistocene Marker GOM: On the charts I published for the Gulf of Mexico (Styzen 1996, Styzen and Jolley 2008) I have a marker (NP 1.65 in the Shell US nomanclature) based on the extinction of (what I identify as) this species. It is the first downhole occurence of a nice vase shaped Scyphosphaera. From the looks of things The age dates assigned to this part of the section on the 2008 chart (available in Time Scale Creator Pro) are a little off. The event falls between the extinctions of Helicosphaera sellii (see my remarks on that too) and that of \large"Gephyrocapsa (which is an event I've never been able to get to work very well). That would put it between 1.34 and 1.46 ma on the Gradstein, Ogg and Smith timescale. If you look at my comment under small Gephyrocapsa you will see that there is also an acme event for that group in this same interval. The event based on S. pulcherrima is the older of the two, very close to the level of the extinction of H. sellii. """

19th May 2011 12:00am

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Tags	LITHS: murolith, elliptical, cylindrical, hollow, CA: plate, pores, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Metrics	Lith size: 10->20µm; Data source notes: lith height from OD & illustrated specimens

Scyphosphaera pulcherrima

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