Nannotax3 - ntax_mesozoic - Timorella

Timorella


Classification: ntax_mesozoic -> Stephanolithiales -> Parhabdolithaceae -> Timorella
Sister taxa: Bucanthus, Calcivascularis, Crucirhabdus, Diductius, Mitrolithus, Parhabdolithus, Timorella, Umbria

Distinguishing features:
Parent taxon (Parhabdolithaceae): Murolith (protolith type) coccoliths with bicylic rims and central-areas spanned by an axial-cross or transverse bar bearing a broad, often long, spine.
This taxon: Modified protoliths, with tapering, cup-like rim and central-area plate.


Daughter taxa (time control age-window is: 0-800Ma)
Timorella cypella
Tapering, cup-like rim and granular central-area plate.
Timorella sp.
Specimens not identified to species level

Taxonomy:

Citation: Timorella Bown, 1987
Rank: Genus
Type species: Timorella cypella Bown, 1987

Farinacci & Howe catalog pages: Timorella *

Distinguishing features:
Parent taxon (Parhabdolithaceae): Murolith (protolith type) coccoliths with bicylic rims and central-areas spanned by an axial-cross or transverse bar bearing a broad, often long, spine.
This taxon: Modified protoliths, with tapering, cup-like rim and central-area plate.


Morphology: Modified protoliths, with tapering, cup-like rim and central-area plate.

Search data:
TagsLITHS: murolith, elliptical, hollow, CA: ca_disjunct, plate, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 4->7┬Ám;
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 Pliensbachian Stage (100% up, 182.7Ma, in Pliensbachian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Pliensbachian Stage (0% up, 190.8Ma, in Pliensbachian 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

Bown, P. R. (1987a). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 1-118. gs


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Timorella compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 9-12-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11223 Go to Archive.is to create a permanent copy of this page - citation notes



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