Nannotax3 - ntax_cenozoic - Scyphosphaera ventriosa

Scyphosphaera ventriosa


Classification: ntax_cenozoic -> Zygodiscales -> Pontosphaeraceae -> Scyphosphaera -> Scyphosphaera ventriosa
Sister taxa: S. apsteinii, S. porosa ⟩⟨ S. brevis, S. globulata, S. hamptonii, S. hemirana, S. lagena ⟩⟨ S. campanula, S. intermedia, S. pulcherrima, S. tubifera, S. ventriosa ⟩⟨ S. columella, S. expansa, S. interstincta, S. olla, S. tercisensis, S. tubicena, S. sp.

Taxonomy:

Citation: Scyphosphaera ventriosa Martini, 1968
Rank: Species
Variants:

Taxonomic discussion:
The holotype specimen of S. ventriosa is rather broader than most specimens but clearly has the weak collar which is the main criterion for grouping these forms, and the name has priority over the other variants included here.

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:
TagsLITHS: murolith, elliptical, cylindrical, hollow, CA: plate, pores, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 12->20µm;
Data source notes: lith height from ODs
The morphological data given here can be used on the advanced search page. See also these notes

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:

References:

Jafar, S. A. (1975). Calcareous nannoplankton from the Miocene of Rotti, Indonesia. Verhandelingen der Koninklijke Nederlandse Akademie van Wetenschappen, Afdeling Natuurkunde. 28: 1-99. gs

Martini, E. (1968). Calcareous nannoplankton from the type Langhian. Giornale di Geologia. 35: 163-172. gs

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. (1972b). Remarks on Late Cretaceous to Pleistocene coccoliths from the North Atlantic. Initial Reports of the Deep Sea Drilling Project. 12: 1003-1069. gs V 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


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Scyphosphaera ventriosa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-9-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1240 Go to Archive.is to create a permanent copy of this page - citation notes



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