Tetrapodorhabdus


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

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

Search data:
TagsLITHS: placolith, elliptical, CA: process, diagonal cross, V-UNITS: V-prominent, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 4->12µm;
Sources: size range of included species
The morphological data given here can be used on the advanced search page. See also these notes

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. (1971). 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 :: ::

Grün, W. & Allemann, F. (1975). The Lower Cretaceous of Caravaca (Spain): Berriasian Calcareous Nannoplankton of the Miravetes Section (Subbetic Zone, Prov. of Murcia). Eclogae Geologicae Helvetiae. 68: 147-211. gs :: view :: open


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Tetrapodorhabdus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-7-2020

Taxon Search:
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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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