Tubirhabdus


Classification: Mesozoic -> Eiffellithales -> Chiastozygaceae -> Tubirhabdus
Sister taxa: Amphizygus, Archaeozygodiscus, Gorkaea, Placozygus, Reinhardtites, Tranolithus, Zeugrhabdotus, Staurolithites, Diadorhombus, Rhabdophidites, Ahmuellerella, Bukrylithus, Heteromarginatus, Misceomarginatus, Monomarginatus, Neocrepidolithus, Vacherauvillius, Chiastozygus, Braloweria, Clepsilithus, Crepidolithus, Loxolithus, Tubirhabdus,

Distinguishing features: Narrowly elliptical loxolith coccoliths with a central-area structure that supports a broad, hollow, flaring spine.


Daughter taxa: (blue => in age window 0-800Ma)
Narrowly elliptical loxolith coccoliths with a central-area structure that supports a broad, hollow, flaring spine.
Specimens not identified to species level

Taxonomy:

Citation: Tubirhabdus Rood et al., 1973
Rank: Genus
Type species: Tubirhabdus patulus Rood et al., 1973.
Notes & discussion: The genus was invalidly described by Prins (1969) but subsequently validly described by Rood et al. (1973)

Farinacci & Howe catalog pages: Tubirhabdus + *

Distinguishing features: Narrowly elliptical loxolith coccoliths with a central-area structure that supports a broad, hollow, flaring spine.

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): in upper part of Sinemurian Stage (67% up, 193.6Ma, in Sinemurian stage). Data source: Total of range of species in this database

Plot of occurrence data:

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

Prins, B. (1969). Evolution and stratigraphy of cocolithinids from the Lower and Middle Lias. In, Bronnimann, P. & Renz, H. H. (eds) Proceedings of the First International conference on Planktonic Microfossils, Geneva 1967. E. J. Brill, Leiden 547-558. gs

Rood, A. P., Hay, W. W. & Barnard, T. (1973). Electron microscope studies of Lower and Middle Jurassic coccoliths. Eclogae Geologicae Helvetiae. 66: 365-382. gs


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Tubirhabdus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-9-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11268 Go to Archive.is to create a permanent copy of this page - citation notes



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