Broinsonia viriosa

Classification: ntax_mesozoic -> Arkhangelskiales -> Arkhangelskiellaceae -> Broinsonia -> Broinsonia viriosa
Sister taxa: B. parca, B. enormis, B. furtiva, B. gammation ⟩⟨ B. verecundia, B. dentata, B. cenomanica ⟩⟨ B. ethmoquadrata ⟩⟨ B. signata, B. galloisii, B. matalosa, B. viriosa, B. sp.

Distinguishing features: Large Broinsonia (>8 µm) with broad axial cross bars.


Citation: Broinsonia viriosa (Jeremiah, 1996) Bown in Kennedy et al., 2000
Rank: Species
Basionym: Acaenolithus viriosus Jeremiah, 1996

Farinacci & Howe catalog pages: A. viriosus *

Distinguishing features: Large Broinsonia (>8 µm) with broad axial cross bars.

Search data:
TagsLITHS: placolith, elliptical, CA: cross-axial, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 8->11µm;
Data source notes: Bown in Kennedy et al. 2000
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Early Albian Substage (110.22-112.95Ma, top in Albian stage). Data source: Jeremiah 1996
First occurrence (base): within Early Albian Substage (110.22-112.95Ma, base in Albian stage). Data source: Jeremiah 1996

Plot of occurrence data:


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

Jeremiah, J. (1996). A proposed Albian to Lower Cenomanian nannofossil biozonation for England and the North Sea Basin. Journal of Micropalaeontology. 15(97-129): -. gs V O

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


Broinsonia viriosa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-1-2021

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