Octopodorhabdus praevisus


Classification: Mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Octopodorhabdus -> Octopodorhabdus praevisus
Sister taxa: O. decussatus, O. praevisus, O. sp.,

Distinguishing features: Podorhabdid with 8 bars, bars do not parallel the axes.


Taxonomy:

Citation: Octopodorhabdus praevisus Noël 1965
Rank: Species
Notes & discussion: Noël (1965) noted that this form was very similar to Hexapodorhabdus cuvillieri and this is also clear from the figures of de Kaenel & Bergen 1996. It may simply be a variant of H. cuvillieri with two extra bars (and openings). As in H. cuvillieri there is an opening at each end of the central area, rather than an axial bar. [my interpretation - JRY 2018]

Farinacci & Howe catalog pages: Octopodorhabdus praevisus *

Distinguishing features: Podorhabdid with 8 bars, bars do not parallel the axes.

Search data:
TagsLITHS: placolith, elliptical, CA: grill, pores, process, V-UNITS: V-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 6->8µm;
Sources: specimens of de Kaenel & Bergen 1996 +/- 1 µm
The morphological data given here can be used on the advanced search page. See also these notes

See also: Hexapodorhabdus cuvillieri ;

Geological Range:
Last occurrence (top): within Tithonian Stage (145.01-152.06Ma, top in Tithonian stage). Data source: de Kaenel & Bergen recede the species from the Tithonian
First occurrence (base): within Oxfordian Stage (157.25-163.47Ma, base in Oxfordian stage). Data source: Noel 1965 described the species from the Oxfordian

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Octopodorhabdus

    References:

    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

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


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    Octopodorhabdus praevisus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 10-7-2020

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11358 Go to Archive.is to create a permanent copy of this page - citation notes



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