Nannotax3 - ntax_main - Axopodorhabdus cylindratus Nannotax3 - ntax_main - Axopodorhabdus cylindratus

Axopodorhabdus cylindratus


Classification: ntax_main -> Mesozoic nannofossils -> Podorhabdales -> Axopodorhabdaceae -> Axopodorhabdus -> Axopodorhabdus cylindratus
Sister taxa: A. albianus, A. atavus, A. cylindratus, A. dietzmannii, A. rahla, A. sp.


Taxonomy:
Citation: Axopodorhabdus cylindratus (Noël, 1965) Wind & Wise in Wise & Wind, 1977
Taxonomic rank: species
Basionym: Podorhabdus cylindratus Noël, 1965
Taxonomic discussion: Axopodorhabdus dietzmannii.

Distinguishing features:
Parent taxon (Axopodorhabdus): Elliptical; central area with axial cross and tall spine
This taxon: Axopodorhabdus with axial cross structure bearing a tall, hollow spine. The four holes delineated by the cross bars are often near circular.

Farinacci & Howe catalog pages:
P. cylindratus *


Morphology:
The younger Axopodorhabdus dietzmannii has an elongated rim with flattened sides (oblong shaped).

Search data:
LITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, process, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 5->8µm;
Data source notes: illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: May range as high as upper Valanginian in the Pacific ocean (Bown, 2005)
Last occurrence (top): in upper part of NJ17a subzone (80% up, 146.8Ma, in Tithonian stage). Data source: Bown & Cooper 1998 (fig. 4) - secondary events
First occurrence (base): within Bajocian Stage (168.17-170.90Ma, base in Bajocian stage). Data source: Bown & Cooper 1998

Plot of occurrence data:

References:

Aguado, R., et al. (2018). A new record of the Weissert episode from the Valanginian succession of Cehegín (Subbetic, SE Spain): bio- and carbon isotope stratigraphy. Cretaceous Research. 92: 122-137. gs

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. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs O

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

Hamilton, G. B. (1977). Early Jurassic calcareous nannofossils from Portugal and their biostratigraphic use. Eclogae Geologicae Helvetiae. 70: 575-597. gs O

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

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

Wind, F. H. & Cepek, P. (1979). Lower Cretaceous calcareous nannoplankton from DSDP Hole 397A (northwest African Margin). Initial Reports of the Deep Sea Drilling Project. 47A: 221-235. gs

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

Wise, S. W. (1983). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 71 in the Falkland Plateau region, Southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 481-550. 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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Axopodorhabdus cylindratus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-6-2026

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10051 Go to Archive.is to create a permanent copy of this page - citation notes



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