Taxonomy:
Distinguishing features:
Parent taxon (Scyphosphaera): Coccospheres with Pontosphaera-like body coccoliths and equatorial coccoliths with rims elevated into vase-like structures (lopadoliths).
This taxon: Similar to S. apsteinii but with low collar around opening.
Farinacci & Howe catalog pages: S. ventriosa * , S. abelei * , S. australiensis * , S. deflandrei * , S. gladstonensis * , S. kamptneri * , S. pacifica * , S. queenslandensis * , S. rottiensis *
Search data:
LITHS: murolith, cylindrical, elliptical, hollow, CA: plate, pores, CROSS-POLARS: V-prominent, R-prominent, rim-bicyclic, |
Lith size: 12->20µm; Data source notes: lith height from ODs |
Geological Range:
Notes: Range very poorly constrained
Last occurrence (top): within NN15 zone (3.70-3.92Ma, top in Zanclean stage). Data source: Young 1998
First occurrence (base): within NN9 zone (9.53-10.55Ma, base in Tortonian stage). Data source: Young 1998
Plot of occurrence data:
Jafar, S. A. (1975). Calcareous nannoplankton from the Miocene of Rotti, Indonesia. Verhandelingen der Koninklijke Nederlandse Akademie van Wetenschappen. 28: 1-99. gs O Martini, E. (1968). Calcareous nannoplankton from the type Langhian. Giornale di Geologia. 35: 163-172. gs Müller, C. (1974). Calcareous nannoplankton, Leg 25 (Western Indian Ocean). Initial Reports of the Deep Sea Drilling Project. 25: 579-633. gs Perch-Nielsen, K. (1972). Remarks on Late Cretaceous to Pleistocene coccoliths from the North Atlantic. Initial Reports of the Deep Sea Drilling Project. 12: 1003-1069. gs 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 References:
Scyphosphaera ventriosa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-12-2024
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