Distinguishing features:
Parent taxon (Axopodorhabdaceae): Regular placoliths; central-area, with cross-bars or perforated plate; often with tall, hollow spines.
Distal shield elements non-imbricate V-units; proximal shield and inner cycle formed from R-units. Rim often appears beaded in LM
This taxon: Elliptical; central area spanned by eight bars that delineate eight large perforations. Central hollow spine.
Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | ![]() | ![]() | Octopodorhabdus decussatus Podorhabdids with central area spanned by eight bars that delineate eight large perforations that run either side of the longitudinal axis. | |
Octopodorhabdus praevisus Podorhabdid with 8 bars, bars do not parallel the axes. | ||||
Octopodorhabdus sp. Specimens not identified to species level |
Taxonomy:
Farinacci & Howe catalog pages: Octopodorhabdus + *
Distinguishing features:
Parent taxon (Axopodorhabdaceae): Regular placoliths; central-area, with cross-bars or perforated plate; often with tall, hollow spines.
Distal shield elements non-imbricate V-units; proximal shield and inner cycle formed from R-units. Rim often appears beaded in LM
This taxon: Elliptical; central area spanned by eight bars that delineate eight large perforations. Central hollow spine.
Morphology:
LITHS: placolith, elliptical, CA: ca_disjunct, grill, pores, process, CROSS-POLARS: rim-bicyclic, V-prominent, |
Lith size: 5->8µm; Data source notes: size range of included species |
Geological Range:
Last occurrence (top): at top of Tithonian Stage (100% up, 145Ma, in Berriasian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within NJ11 zone (166.4-168.67Ma, base in Bajocian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
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 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. gsReferences:
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Octopodorhabdus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-12-2023
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10815 Go to Archive.is to create a permanent copy of this page - citation notes |
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