Nannotax3 - ntax_Farinacci - Rhomboasteraceae Nannotax3 - ntax_Farinacci - Rhomboasteraceae

CATALOG - Rhomboasteraceae


Folder trail: ntax_Farinacci -> R -> Rhomboasteraceae
Folders this level: << < Retemediaformis, Reticulofenestra, Rhabdocyclus, Rhabdolekiskus, Rhabdolithina, Rhabdolithoideae, Rhabdolithus, Rhabdophidites, Rhabdosphaera, Rhabdosphaeraceae, Rhabdosphaeroideae, Rhabdothorax, Rhagodiscaceae, Rhagodiscus, Rhomboaster, Rhomboasteraceae, Rhombogyrus, Rhombolithion, Rhombozygus, Rotalithus, Rotelapillus, Rothia, Rucinolithus, Russellia, Ruttnera

Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
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Current identification/main database link: Rhomboasteraceae Bown, 2005

Compiled data

Citation: Rhomboasteraceae Bown, 2005
taxonomic rank: Family
Current citation: Rhomboasteraceae Bown, 2005


Original Description

Diagnosis: Nannoliths with rhombic and triradiate mor- phologies, and non-birefringent images in XPL. Incorporating the genera Rhomboaster and Tribrachiatus.

Extra details from original publication
Remarks: Rhomboaster and Tribrachiatus nannoliths comprise an evolutionary lineage from the oldest, rhom- bic nannoliths (cuspis-type), through intermediate forms with two superimposed triradiate cycles (bramlettei- type), to the youngest, single-cycled triradiate forms (orthostylus-type). Bybell & Self-Trail (1995, 1997) argued for the use of one genus only, whereas others have retained both (e.g. Aubry, 1996). Both genera are used here: Rhomboaster for nannoliths with three-dimensional, rhombic to bicyclic, triradiate morphologies, and Tribrachiatus for flatter morphologies with a single triradiate cycle.

References:

Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs O


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Rhomboasteraceae: Catalog entry compiled by <% compiler %>. Viewed: 10-11-2024

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