Nannotax3 - ntax_mesozoic - Eiffellithus pospichalii

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

Burnett 97 JNR Petra pl1-11.JPG
Burnett1998-6-03-19.jpg
Burnett1998-6-03-20.jpg

Taxonomy:

Citation: Eiffellithus pospichalii Burnett, 1997

taxonomic rank: Species

Farinacci & Howe catalog pages: E. pospichalii *

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: diagonal cross, plate, process, ca_disjunct, CROSS-POLARS: R-prominent, V-prominent, rim-bicyclic,

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:

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

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

Eiffellithus pospichalii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 15-10-2024

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

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