Neocrepidolithus neocrassus


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

Taxonomy:

Citation: Neocrepidolithus neocrassus (Perch-Nielsen, 1968) Romein, 1979
Rank: Species
Basionym: Crepidolithus neocrassus Perch-Nielsen, 1968
Variants: Neocrepidolithus bukryi Perch-Nielsen, 1980

Distinguishing features: Neocrepidolithus with bicyclic LM image and narrow to closed central area.

Farinacci & Howe catalog pages: C. neocrassus * , N. bukryi *

Search data:
TagsLITHS: murolith, elliptical, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 4->7µm;
Data source notes: lith size from illustrated specs
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 NP4 zone (100% up, 61.5Ma, in Selandian stage). Data source: Varol, 1989, fig. 12.4
First occurrence (base): within Maastrichtian Stage (66.04-72.05Ma, base in Maastrichtian stage). Data source: Perch-Nielsen 1985

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 V O

Perch-Nielsen, K. (1968c). Der Feinbau und die Klassifikation der Coccolithen aus dem Maastrichtien von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 16: 1-96. gs

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

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

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


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

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=936 Go to Archive.is to create a permanent copy of this page - citation notes



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