Neococcolithes


Classification: ntax_cenozoic -> Zygodiscales -> Zygodiscaceae -> Neococcolithes
Sister taxa: Lophodolithus, Neochiastozygus, Zygodiscus ⟩⟨ Chiphragmalithus, Isthmolithus, Neococcolithes, Nannotetrina

Daughter taxa (time control age-window is: 0-800Ma)
Neococcolithes dubius
Moderate to large with H-shaped cross bars.
Neococcolithes lososnensis
Neococcolithes species with long central bar
Neococcolithes minutus
Narrowly elliptical (with pointed ends), with cross bars forming an H-shape.
Neococcolithes nudus
Narrowly elliptical with cross bars in narrow X-shape
Neococcolithes protenus
Small to moderate with straight, diagonal, cross bars.
Neococcolithes purus
Narrowly-elliptical with vacant central area
Neococcolithes radiatus
Narrowly-elliptical, central area with numerous (18–22) radiating bars
Neococcolithes sp.
Specimens which cannot be assigned to any established species

Taxonomy:

Citation: Neococcolithes Sujkowski, 1931
Rank: Genus
Type species: Neococcolithes lososnensis Sujkowski, 1931
Synonyms:

Distinguishing features: Muroliths with diagonal to H-shaped cross bars. R-unit relict or absent and so LM image is unicyclic.

Farinacci & Howe catalog pages: Neococcolithes * , Heliorthus * , Zygolithus + + + * , Indumentalithus *


Size: Predominantly medium-sized (5-8 µm).

See also: Nannotetrina - nannolith possibly formed by reduction of wall in Neococcolithes;

Search data:
TagsLITHS: murolith, elliptical, CA: ca_disjunct, diagonal cross, CROSS-POLARS: rim-unicyclic, V-prominent,
MetricsLith size: 5->10µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): near top of Priabonian Stage (86% up, 34.4Ma, in Priabonian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Perch-Nielsen, K. (1985a). Cenozoic calcareous nannofossils. In, Bolli, H. M., Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge 427-555. gs

Sujkowski, Z. (1931). Étude pétrographique de Crétacé de Pologne. Sprawozdania Polskiego instytutu geologicznego. 6: 485-628. gs


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Neococcolithes compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-4-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=921 Go to Archive.is to create a permanent copy of this page - citation notes



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