Neocrepidolithus cruciatus


Classification: Mesozoic -> Eiffellithales -> Chiastozygaceae -> Neocrepidolithus -> Neocrepidolithus cruciatus
Sister taxa: N. cohenii, N. cruciatus, N. ruegenensis, N. watkinsii, N. sp.,

Distinguishing features: Narrow central area filled with an axial cross; bicyclic


Taxonomy:

Citation: Neocrepidolithus cruciatus (Perch-Nielsen, 1979b) Perch-Nielsen, 1981
Basionym: Crepidolithus cruciatus Perch-Nielsen, 1979b

Farinacci & Howe catalog pages: Crepidolithus cruciatus *

Distinguishing features: Narrow central area filled with an axial cross; bicyclic


Morphology remarks: Neocrepidolithus with narrow central area filled with an axial cross. Clearly bicyclic in LM.

Search data:
TagsLITHS: murolith, elliptical, CA: cross-axial, closed, V-UNITS: V-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 4->6µm;
Sources: illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP4 zone (61.51-63.25Ma, top in Selandian stage). Data source: Perch-Nielsen 1985b
First occurrence (base): within Turonian Stage (89.77-93.90Ma, base in Turonian stage). Data source: Burnett 1998

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Neocrepidolithus

    References:

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

    Pospichal, J. J. & Wise, S. W. (1990). Calcareous nannofossils across the K/T boundary, ODP hole 690C, Maud Rise, Weddell Sea. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 515-532. gs :: view :: open


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    Neocrepidolithus cruciatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-7-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10792 Go to Archive.is to create a permanent copy of this page - citation notes



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