Nannotax3 - ntax_mesozoic - Eiffellithus pospichalii Nannotax3 - ntax_mesozoic - Eiffellithus pospichalii

Eiffellithus pospichalii


Classification: ntax_mesozoic -> Eiffellithales -> Eiffellithaceae -> Eiffellithus -> Eiffellithus pospichalii
Sister taxa: E. eximius, E. lindiensis ⟩⟨ E. gorkae, E. keio, E. parallelus, E. pospichalii, E. turriseiffelii ⟩⟨ E. collis, E. equibiramus, E. parvus ⟩⟨ E. monechiae, E. praestigium, E. vonsalisiae, E. hancockii, E. paragogus ⟩⟨ E. primus, E. striatus, E. windii, E. sp.

Distinguishing features:
Parent taxon (Eiffellithus): Loxolith coccoliths with a prominent inner rim cycle that is birefringent and conspicuous in cross-polarised light; this cycle is broader than the outer rim cycle. The central area is spanned by variably-orientated cross-bars.
This taxon: Large (holotype 11µm) Eiffellithus with thick diagonal cross-bars


Taxonomy:

Citation: Eiffellithus pospichalii Burnett, 1997
taxonomic rank: Species

Farinacci & Howe catalog pages: E. pospichalii *

Distinguishing features:
Parent taxon (Eiffellithus): Loxolith coccoliths with a prominent inner rim cycle that is birefringent and conspicuous in cross-polarised light; this cycle is broader than the outer rim cycle. The central area is spanned by variably-orientated cross-bars.
This taxon: Large (holotype 11µm) Eiffellithus with thick diagonal cross-bars


Morphology:

This form is distinct from other species of Eiffellithus in being large, very highly birefringent, and having a broad thick cross filling the central area. [Burnett 1997]


Ecology & Biogeography

This form has only been observed in the Indian Ocean basin and immediate environs. [Burnett 1997]

Search data:
LITHS: murolith, elliptical, CA: ca_disjunct, plate, process, diagonal cross, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 9->13µm;
Data source notes: holotype+/-2µm
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Campanian Stage (72.17-83.65Ma, top in Campanian stage). Data source: Burnett 1998
First occurrence (base): within Campanian Stage (72.17-83.65Ma, base in Campanian stage). Data source: Burnett 1998

Plot of occurrence data:

References:

Burnett, J. A. (1997c). New species and new combinations of Cretaceous nannofossils and a note on the origin of Petrarhabdus (Deflandre) Wise & Wind. Journal of Nannoplankton Research. 19(2): 133-146. gs

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


nannotaxlogo400px

Eiffellithus pospichalii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-2-2024

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10416 Go to Archive.is to create a permanent copy of this page - citation notes
nannotaxlogo400px

Nannotax is being sponsored through 2024 by Woodside Energy and Shell USA


Add Comment

* Required information
Captcha Image
Powered by Commentics

Comments

No comments yet. Be the first!