Nannotax3 - ntax_mesozoic - Prediscosphaera incohatus Nannotax3 - ntax_mesozoic - Prediscosphaera incohatus

Prediscosphaera incohatus


Classification: ntax_mesozoic -> Podorhabdales -> Prediscosphaeraceae -> Prediscosphaera -> P. spinosa group -> Prediscosphaera incohatus
Sister taxa: P. arkhangelskyi, P. borealensis, P. bukryi, P. incohatus, P. mgayae, P. rhombica, P. spinosa, P. stoveri

Distinguishing features:
Parent taxon (P. spinosa group): Elliptical Prediscophaera species with an axial cross
This taxon: Medium to large (7-12 µm)


Taxonomy:

Citation: Prediscosphaera incohatus (Stover, 1966) Burnett 1998
taxonomic rank: Species
Basionym: Discolithus incohatus Stover, 1966
Taxonomic discussion: This name is not well documented but appears to be used for larger Prediscosphaera spinosa type coccoliths. Hattner & Wise (1980) regarded P. incohatus as a junior synonym of P. spinosa.

Farinacci & Howe catalog pages: D. incohatus *

Distinguishing features:
Parent taxon (P. spinosa group): Elliptical Prediscophaera species with an axial cross
This taxon: Medium to large (7-12 µm)

Search data:
LITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, process, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 7->12µm; Segments: 16->16;
Data source notes: original description
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.17Ma, top in Maastrichtian stage). Data source: Burnett 1998
First occurrence (base): within Turonian Stage (89.39-93.90Ma, base in Turonian stage). Data source: Burnett 1998

Plot of occurrence data:

References:

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 132-199. gs O

Stover, L. E. (1966). Cretaceous coccoliths and associated nannofossils from France and the Netherlands. Micropaleontology. 12(2): 133-167. gs

Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 31(1): 39-56. gs


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Prediscosphaera incohatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-10-2024

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10935 Go to Archive.is to create a permanent copy of this page - citation notes
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