Axopodorhabdus cylindratus


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

Distinguishing features: Axopodorhabdus with axial cross structure bearing a tall, hollow spine. The four holes delineated by the cross bars are often near circular.


Taxonomy:

Citation: Axopodorhabdus cylindratus (Noël, 1965) Wind and Wise in Wise and Wind, 1977
Rank: Species
Basionym: Podorhabdus cylindratus Noël, 1965
Notes & discussion: Axopodorhabdus dietzmannii.

Farinacci & Howe catalog pages: Podorhabdus cylindratus *

Distinguishing features: Axopodorhabdus with axial cross structure bearing a tall, hollow spine. The four holes delineated by the cross bars are often near circular.


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

Search data:
TagsLITHS: placolith, elliptical, CA: cross-axial, process, V-UNITS: V-prominent, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 5->8µm;
Sources: 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, 149.6Ma, in Tithonian stage). Data source: Bown & Cooper 1998 (fig. 4) - secondary events
First occurrence (base): within Bajocian Stage (168.28-170.30Ma, base in Bajocian stage). Data source: Bown & Cooper 1998

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Axopodorhabdus cylindratus, synonyms included - Axopodorhabdus cylindratus;
  • space-time plot :: Samples map :: Parent: Axopodorhabdus

    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 :: view :: open

    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 :: ::

    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 :: view :: open

    de Kaenel, E. & Bergen, J. A. (1996). 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 :: view :: open

    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 :: view :: open

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

    Noël, D. (1965b). Sur les Coccolithes du Jurassique Européen et d'Afrique du Nord. 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. 75: 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 :: view :: open

    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 :: view :: open

    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 :: view :: open

    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 :: view :: open

    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 :: view :: open


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    Axopodorhabdus cylindratus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-8-2020

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    Short stable page link: http://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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