Neocrepidolithus fossus


Classification: ntax_cenozoic -> Mesozoic Survivors -> Chiastozygaceae -> Neocrepidolithus -> Neocrepidolithus fossus
Sister taxa: N. cohenii, N. cruciatus, N. dirimosus, N. fossus, N. grandiculus, N. neocrassus, N. sp.

Taxonomy:

Citation: Neocrepidolithus fossus (Romein, 1977) Romein, 1979
Rank: Species
Basionym: Crepidolithus fossus Romein, 1977

Distinguishing features: Neocrepidolithus with broad rim and narrow to closed central area. No obvious central structures and unicyclic in LM.

Farinacci & Howe catalog pages: C. fossus *

Search data:
TagsLITHS: murolith, elliptical, CROSS-POLARS: rim-unicyclic, V-prominent, R-prominent,
MetricsLith size: 5->7µm;
Data source notes: lith size from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): at top of NP3 zone (100% up, 63.3Ma, in Danian stage). Data source: Varol, 1989, fig. 12.4
First occurrence (base): within NP1 zone (65.47-66.04Ma, base in Danian stage). Data source: Romein 1979

Plot of occurrence data:

References:

Perch-Nielsen, K. (1981b). New Maastrichtian and Paleocene calcareous nannofossils from Africa, Denmark, and USA and the Atlantic, and some Paleocene lineages. Eclogae Geologicae Helvetiae. 74(3): 831-863. gs V O

Romein, A. J. T. (1977). Calcareous nannofossils from the Cretaceous/Tertiary boundary interval in the Barranco del Gredero (Caravaca, Prov. Murcia, S.E. Spain). II. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. B80: 269-279. gs

Romein, A. J. T. (1979). Lineages in Early Paleogene calcareous nannoplankton. Utrecht Micropaleontological Bulletin. 22: 1-231. gs V O

Varol, O. (1989c). Palaeocene calcareous nannofossil biostratigraphy. In, Crux, J. A. & van Heck, S. E. (eds) Nannofossils and their applications: Proceedings of the 2nd INA Conference, London 1987. British Micropalaeontological Society Publication Series. 265-310. gs V O

Varol, O. (1998). Palaeogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 200-224. gs


nannotaxlogo400px

Neocrepidolithus fossus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 2-3-2021

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=934 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics