Tubodiscus burnettiae


Classification: Mesozoic -> Podorhabdales -> Tubodiscaceae -> Tubodiscus -> Tubodiscus burnettiae
Sister taxa: T. bellii, T. burnettiae, T. frankiae, T. jurapelagicus, T. verenae, T. sp.

Distinguishing features: Medium to large (5-10 µm), typically broadly elliptical; the central area is broad (usually greater than the width of the rim). Inner and outer rim cycles of similar width.


Taxonomy:

Citation: Tubodiscus burnettiae Bown in Kennedy et al., 2000
Rank: Species

Farinacci & Howe catalog pages: T. burnettiae *

Distinguishing features: Medium to large (5-10 µm), typically broadly elliptical; the central area is broad (usually greater than the width of the rim). Inner and outer rim cycles of similar width.


Morphology: A large (c. 7.5 µm), typically broadly elliptical species of Tubodiscus with two distinct rim cycles, the outermost cycle is dark and often slightly broader, the inner cycle displays white interference colours; the central area is broad (usually greater than the width of the rim) and no central structures have been observed.

Search data:
TagsLITHS: placolith, elliptical, CA: vacant, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 5->10µm;
Data source notes: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Albian Stage (100.50-112.95Ma, top in Albian stage). Data source: Kennedy et al. 2000
First occurrence (base): within Valanginian Stage (133.88-139.39Ma, base in Valanginian stage). Data source: Kennedy et al. 2000

Plot of occurrence data:

References:

Applegate, J. L. & Bergen, J. A. (1988). Cretaceous calcareous nannofossil biostratigraphy of sediments recovered from the Galicia Margin, ODP Leg 103. Proceedings of the Ocean Drilling Program, Scientific Results. 103: 293-348. gs V O

Bown, P. R. (2001). Calcareous nannofossils of the Gault, Upper Greensand and Glauconitic Marl (Middle Albian-Lower Cenomanian) from the BGS Selborne boreholes, Hampshire. Proceedings of the Geologists' Association. 112: 223-236. gs

Bown, P. R. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs V O

Gale, A. S. et al. (2011). The uppermost Middle and Upper Albian succession at the Col de Palluel, Hautes-Alpes, France: An integrated study (ammonites, inoceramid bivalves, planktonic foraminifera, nannofossils, geochemistry, stable oxygen and carbon isotopes, cyclostratigraphy). Cretaceous Research. 32: 59-130. gs

Kennedy, W. J. et al. (2000). Integrated stratigraphy across the Aptian-Albian boundary in the Marnes Bleues, at the Col de Pre _-Guittard, Arnayon (Drome), and at Tartonne (Alpes-de-Haute-Provence), France: a candidate Global Boundary Stratotype Section and Boundary Point for the base of the Albian Stage. Cretaceous Research. 21: 591-720. gs


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Tubodiscus burnettiae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-11-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11274 Go to Archive.is to create a permanent copy of this page - citation notes



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