arrayname: original
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: Sub-circular, rim broad; central area spanned by a granular bar supporting a broad, tall, hollow, flaring spine.
Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | Podorhabdus grassei Broadly elliptical to subcircular podorhabdid with central area spanned by a granular bar supporting a broad, tall, hollow, flaring spine. | |||
Podorhabdus sp. Specimens not identified to species level |
Taxonomy:
Farinacci & Howe catalog pages: Podorhabdus + *
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: Sub-circular, rim broad; central area spanned by a granular bar supporting a broad, tall, hollow, flaring spine.
Morphology:
LITHS: placolith, circular, elliptical, CA: bar, closed, process, ca_disjunct, CROSS-POLARS: V-prominent, rim-bicyclic, |
Lith size: 4->8µm; Data source notes: size range of included species |
Geological Range:
Last occurrence (top): at top of NJ17a subzone (100% up, 146.3Ma, in Tithonian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within NJ8b subzone (172.30-175.79Ma, base in Toarcian 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 Deflandre, G. & Fert, C. (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie. 40: 115-176. 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 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 OReferences:
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Podorhabdus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 26-3-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10919 Go to Archive.is to create a permanent copy of this page - citation notes |
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