Cruciplacolithus edwardsii


Classification: ntax_cenozoic -> Coccolithales -> Coccolithaceae -> Cruciplacolithus -> Cruciplacolithus edwardsii
Sister taxa: C. neohelis, C. kanungoi ⟩⟨ C. cruciformis, C. flavius, C. klausii, C. nishii, C. tarquinius ⟩⟨ C. asymmetricus, C. edwardsii, C. frequens ⟩⟨ C. intermedius, C. primus, C. subrotundus, C. tenuis ⟩⟨ C. filigranus, C. inseadus, C. latipons, C. sp.

Taxonomy:

Citation: Cruciplacolithus edwardsii Romein, 1979
Rank: Species
Synonyms: Sullivania edwardsii (Romein, 1979) Varol 1992

Distinguishing features: Moderate to large Cruciplacolithus with strongly rotated (>20 degrees) cross-bars.

Farinacci & Howe catalog pages: C. edwardsii + *

Search data:
TagsLITHS: placolith, elliptical, CA: ca_disjunct, diagonal cross,
CSPH: equant, monomorphic, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 6->10µm;
Data source notes: lith size from Romein 1979
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Eocene Epoch (33.89-55.96Ma, top in Priabonian stage). Data source: [PRB rough estimate]
First occurrence (base): within NP3 zone (63.25-64.81Ma, base in Danian stage). Data source: [PRB rough estimate]

Plot of occurrence data:

References:

Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs V O

Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs V O

Pospichal, J. J. & Wise, S. W. (1990a). 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 V O

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


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Cruciplacolithus edwardsii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-2-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=381 Go to Archive.is to create a permanent copy of this page - citation notes



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