Nannotax3 - ntax_mesozoic - Ethmorhabdus gallicus Nannotax3 - ntax_mesozoic - Ethmorhabdus gallicus

Ethmorhabdus gallicus


Classification: ntax_mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Ethmorhabdus -> Ethmorhabdus gallicus
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: Medium (7-9 µm) Ethmorhabdus with finely perforate net.


Taxonomy:

Citation: Ethmorhabdus gallicus Noël, 1965
taxonomic rank: Species
Synonyms:

Farinacci & Howe catalog pages: E. gallicus * , E. rimosus *

Distinguishing features:
Parent taxon (Ethmorhabdus): Elliptical, narrow rim; central area wide, spanned by multiperforate net, with or without axial cross and spine.
This taxon: Medium (7-9 µm) Ethmorhabdus with finely perforate net.

Search data:
LITHS: placolith, elliptical, CA: ca_disjunct, grill, plate, process, closed, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 7->9µm;
Data source notes: illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): at top of NJ17b subzone (100% up, 145.5Ma, in Tithonian stage). Data source: Bown & Cooper 1998 (fig. 4) - secondary events
First occurrence (base): within NJ6 zone (181.57-183.52Ma, base in Toarcian stage). Data source: Bown & Cooper 1998

Plot of occurrence data:

References:

Barnard, T. & Hay, W. W. (1974). On Jurassic coccoliths: A tentative zonation of the Jurassic of Southern England and North France. Eclogae Geologicae Helvetiae. 67(3): 563-585. gs O

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

Bown, P. R. & Young, J. R. (1997). Mesozoic calcareous nannoplankton classification. Journal of Nannoplankton Research. 19(1): 21-36. gs

Bown, P. R. (1987a). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 1-118. gs

de Kaenel, E. & Bergen, J. A. (1996b). Mesozoic calcareous nannofossil biostratigraphy from sites 897, 899, and 901, Iberia Abyssal Plain: New biostratigraphic evidence. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 27-59. 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

Medd, A. W. (1979). The Upper Jurassic coccoliths from the Haddenham and Gamlingay boreholes (Cambridgeshire, England). Eclogae Geologicae Helvetiae. 72: 19-109. gs O

Menini, A., Mattioli, E., Spangenberg, J. E., Pittet, B. & Suan, G. (2018). New calcareous nannofossil and carbon isotope data for the Pliensbachian/Toarcian boundary (Early Jurassic) in the western Tethys and their paleoenvironmental implications. Newsletters on Stratigraphy. -. gs

Noël, D. (1965). Sur les Coccolithes du Jurassique Européen et d'Afrique du Nord. Essai de classification des coccolithes fossiles. Éditions du Centre National de la Recherche Scientifique, Paris. 1-209. 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

Rood, A. P., Hay, W. W. & Barnard, T. (1973). Electron microscope studies of Lower and Middle Jurassic coccoliths. Eclogae Geologicae Helvetiae. 66: 365-382. gs O

Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. 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 gallicus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-4-2024

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