Classification: Coccolithophores -> Mesozoic Survivors -> Chiastozygaceae -> Neocrepidolithus
Sister taxa: Jakubowskia, Neocrepidolithus, Staurolithites, Zeugrhabdotus,
Citation: Neocrepidolithus Romein, 1979Rank: GenusType species: Crepidolithus neocrassus Perch-Nielsen, 1968Taxonomic discussion: Includes a number of species that are very similar and may represent synonyms (e.g. N. coheni, N. neocrassus and N. fossus).
Distinguishing features: Murolith (loxolith) coccoliths with broad, high rim and narrow or closed central-area, which may be spanned by bars.
Farinacci & Howe catalog pages: Neocrepidolithus *
Size: Most species are 4-7 µm long (ie. medium size) the prime exception is N. grandiculus which is much larger (7-13.5 µm)
The morphological data given here can be used on the advanced search page. See also these notes
|Tags||LITHS: murolith, |
|Metrics||Lith size: 4->13.5µm; |
Last occurrence (top): in lower part of Ypresian Stage (28% up, 53.7Ma, in Ypresian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Turonian Stage (0% up, 93.9Ma, in Turonian stage). Data source: Total of range of species in this database
Plot of occurrence data:
- Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
- Triangles indicate an event for which a precise placement has been suggested
- Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Chiastozygaceae
Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs V O
Romein, A. J. T. (1979). Lineages in Early Paleogene calcareous nannoplankton. Utrecht Micropaleontological Bulletin. 22: 231-. gs V O