Nannotax3 - ntax_mesozoic

Flabellites

Classification: ntax_mesozoic -> Podorhabdales -> Cretarhabdaceae -> Flabellites
Sister taxa: Mattiolia, Wisea ⟩⟨ Speetonia ⟩⟨ Cruciellipsis, Flabellites, Grantarhabdus, Helenea ⟩⟨ Cretarhabdus, Retecapsa, Pickelhaube, Miravetesina

Distinguishing features: Cretarhabdids with relatively broad shields; central area spanned by blocky diagonal cross; outline may be asymmetric.

Daughter taxa (time control age-window is: 0-800Ma)
				Flabellites oblongus Cretarhabdid with relatively narrow central-area spanned by blocky diagonal cross; outline may be asymmetric. Typically medium to large (6-10 µm), early forms smaller.
				Flabellites sp. Specimens not identified to species level

Taxonomy:

Citation: Flabellites Thierstein, 1973

Rank: Genus

Type species: Flabellites oblongus (Bukry, 1969) Crux in Crux et al., 1982.

Farinacci & Howe catalog pages: Flabellites *

Distinguishing features: Cretarhabdids with relatively broad shields; central area spanned by blocky diagonal cross; outline may be asymmetric.

Search data:

Tags	LITHS: placolith, asymmetric, elliptical, CA: ca_disjunct, diagonal cross, CROSS-POLARS: rim-unicyclic, R-prominent,
Metrics	Lith size: 6->9µm; 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): at top of Coniacian Stage (96% up, 86.4Ma, in Coniacian stage). Data source: Total of range of species in this database
First occurrence (base): in lower part of Barremian Stage (30% up, 129.4Ma, in Barremian 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: Cretarhabdaceae

References:

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

Crux, J. A., Hamilton, G. B., Lord, A. R. & Taylor, R. J. (1982). Tortolithus gen. nov. Crux and new combinations of Mesozoic calcareous nannofossils from England. INA Newsletter. 4: 98-101. gs V O

Thierstein, H. R. (1973). Lower cretaceous calcareous nannoplankton biostratigraphy. Abhandlungen der Geologischen Bundesanstalt. 29: 3-52. gs V O

Flabellites compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-2-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10451 Go to Archive.is to create a permanent copy of this page - citation notes

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