Tetrapodorhabdus


Classification: Mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Tetrapodorhabdus
Sister taxa: Axopodorhabdus, Cribrocorona, Cribrosphaerella, Dodekapodorhabdus, Ethmorhabdus, Hemipodorhabdus, Hexapodorhabdus, Nephrolithus, Octocyclus, Octopodorhabdus, Perissocyclus, Podorhabdus, Psyktosphaera, Teichorhabdus, Tetrapodorhabdus,

Distinguishing features: Ellptical; central area with diagonal cross or offset crossbars bars, supporting hollow spine


Daughter taxa: (blue => in age window 0-800Ma)
Podorhabdids with central area spanned by diagonal cross bars.
Podorhabdid with central area spanned by relatively high angle diagonal cross bars that bear a large, flaring spine.
Podorhabdid with central area spanned by asymmetric diagonal cross.
Specimens not identified to species level

Taxonomy:

Citation: Tetrapodorhabdus Black, 1971
Rank: Genus
Type species: Tetrapodorhabdus coptensis Black, 1971.

Farinacci & Howe catalog pages: Tetrapodorhabdus * , ,

Distinguishing features: Ellptical; central area with diagonal cross or offset crossbars bars, supporting hollow spine

Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Bajocian Stage (82% up, 168.6Ma, in Bajocian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Black, M. (1971a). Coccoliths of the Speeton Clay and Sutterby Marl. Proceedings of the Yorkshire Geological Society. 38: 381-424. gs

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., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Early Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 86-131. gs


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Tetrapodorhabdus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-7-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11206 Go to Archive.is to create a permanent copy of this page - citation notes



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