Nannotax3 - ntax_cenozoic - Cruciplacolithus edwardsii

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.

PospWiseLeg113-KT_Pl1-Fig5.JPG
Bown_2005_JNR_pl5-fig27.jpg
Bown_2005_JNR_pl5-fig28.jpg
Bown_2005_JNR_pl5-fig29.jpg
Bown-JNR2016-pl3-09.JPG
Bown-JNR2016-pl3-10.JPG

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:

Tags	LITHS: placolith, elliptical, CA: ca_disjunct, diagonal cross, CSPH: equant, monomorphic, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Metrics	Lith 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:

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
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Cruciplacolithus edwardsii, synonyms included - C. edwardsii; Chiasmolithus edwardsii; Cruciplacolithus edwardsii; Cruciplacolithus oulchyensis; Sullivania edwardsii;
See also space-time plot :: Samples map :: Parent: Cruciplacolithus

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

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

Taxon Search:

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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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