Petrobrasiella


Classification: Mesozoic -> Holococcoliths -> Rarer genera -> Petrobrasiella
Sister taxa: Bifidalithus, Bilapillus, Multipartis, Munarinus, Octolithus, Okkolithus, Ottavianus, Pharus, Ramsaya, Russellia, Saepiovirgata, Acuturris, Anfractus, Duocameratus, Lacunolithus-Bown, Metadoga, Nicholasia, Paulpearsonia, Petrobrasiella, Pseudoconus, Semihololithus, Stereorhabdus, Tanzanella, Thecatus, unidentified holococcoliths,

Distinguishing features: Domed-shaped holococcoliths with holes or cavities.


Daughter taxa: (blue => in age window 0-300Ma)

Large, domed-shaped holococcoliths with holes or cavities.
Specimens not identified to species level

Taxonomy:

Citation: Petrobrasiella Troelsen & Quadros, 1971
Rank: Genus
Type species: Petrobrasiella venata Troelsen & Quadros, 1971
Synonyms: Athenagalea Hattner and Wise, 1980

Farinacci & Howe catalog pages: Athenagalea * Petrobrasiella *

Distinguishing features: Domed-shaped holococcoliths with holes or cavities.

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): within Santonian Stage (83.64-86.26Ma, base in Santonian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Burnett, J.A., (1998). Upper Cretaceous. In: Bown, P.R. (Editor), Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publications Series. Chapman & Hall, London, pp. 132-199.

Hattner, J.G. & Wise, S.W., (1980). Upper Cretaceous calcareous nannofossil biostratigraphy of South Carolina. South Carolina Geology, 24: 41-117.

Troelsen, J. & Quadros, L.P., (1971). Distribuição bioestratigráfica dos nanofósseis em sedimentos marinhos (Aptiano-Mioceno) do Brasil. Anais da Academia Brasileira de Ciências, 43, 577-609: suplemento.


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Petrobrasiella compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-8-2018

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