Nannotax3 - ntax_mesozoic - Ethmorhabdus anglicus Nannotax3 - ntax_mesozoic - Ethmorhabdus anglicus

Ethmorhabdus anglicus


Classification: ntax_mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Ethmorhabdus -> Ethmorhabdus anglicus
Sister taxa: E. anglicus, E. crucifer, E. gallicus, E. hauterivianus, E. sp.

Distinguishing features:
Parent taxon (Ethmorhabdus): Elliptical, narrow rim; central area wide, spanned by multiperforate net, with or without axial cross and spine.
This taxon: Small (4-6 µm) Ethmorhabdus with two cycles of relatively large perforations (20-30 in total).


Taxonomy:

Citation: Ethmorhabdus anglicus Rood et al., 1971
taxonomic rank: Species

Farinacci & Howe catalog pages: E. anglicus *

Distinguishing features:
Parent taxon (Ethmorhabdus): Elliptical, narrow rim; central area wide, spanned by multiperforate net, with or without axial cross and spine.
This taxon: Small (4-6 µm) Ethmorhabdus with two cycles of relatively large perforations (20-30 in total).

Search data:
LITHS: placolith, elliptical, CA: ca_disjunct, grill, plate, process, closed, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 4->6µm;
Data source notes: holotype +/- 1µm & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Tithonian Stage (143.10-149.24Ma, top in Tithonian stage). Data source: Bown & Cooper 1998
First occurrence (base): within Bathonian Stage (165.30-168.17Ma, base in Bathonian stage). Data source: [PRB estimate]

Plot of occurrence data:

References:

Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 34-85. gs O

Grün, W. & Zweili, F. (1980). Das kalkige Nannoplankton der Dogger-Malm-Grenze im Berner Jura bei Liesberg (Schweiz). Jahrbuch der Geologischen Bundesanstalt. 123: 231-341. gs

Noël, D. (1973). Nannofossiles calcaires de sédiments jurassiques finement laminés. Bulletin du Muséum National d'Histoire Naturelle, Paris. 75 [1972]: 95-156. gs

Rood, A. P., Hay, W. W. & Barnard, T. (1971). Electron Microscope Studies of Oxford Clay Coccoliths. Eclogae Geologicae Helvetiae. 64: 245-272. gs O

Zweili, F. (1989). Fossile Coccolithophoriden aus dem Weissensteingebiet. Mitteilungen / Naturforschende Gesellschaft des Kantons Solothurn. 34: 199-213. gs O


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Ethmorhabdus anglicus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-4-2024

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10440 Go to Archive.is to create a permanent copy of this page - citation notes
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