Nannotax3 - ntax_mesozoic

Podorhabdus

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

Distinguishing features: 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:

Citation: Podorhabdus Noël, 1965

Rank: Genus

Type species: Podorhabdus grassei Noël, 1965.

Taxonomic discussion: Most species originally described in this genus have since been removed to other genera so it is now essentially monospecific. P? elkefensis is very unlikely to be directly related to P. grassei so should be removed from the genus.

Farinacci & Howe catalog pages: Podorhabdus + *

Distinguishing features: Sub-circular, rim broad; central area spanned by a granular bar supporting a broad, tall, hollow, flaring spine.

Morphology: Described by Noël (1965) as having four ‘pillars’ but the type species holotype image shows just two (see discussion in Wise and Wind, 1977). Furthermore, Podorhabdus grassei may be a junior synonym of Rhabdolithus patulus Deflandre, 1954, which was designated the type species of Discorhabdus by Noël (1965).

Search data:

Tags	LITHS: placolith, circular, elliptical, CA: ca_disjunct, process, bar, closed, CROSS-POLARS: rim-bicyclic, V-prominent,
Metrics	Lith size: 4->8µm; Data source notes: 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): in lower part of Tithonian Stage (42% up, 149.1Ma, in Tithonian stage). Data source: Total of range of species in this database
First occurrence (base): near top of Aalenian Stage (92% up, 170.6Ma, in Aalenian stage). Data source: Total of range of species in this database

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Axopodorhabdaceae

References:

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

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. (1965b). 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 V O

Podorhabdus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-4-2021

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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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