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:
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:
Ecology & Biogeography
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 |
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:
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 OReferences:
Eiffellithus pospichalii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 10-9-2024
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 |
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