Distinguishing features:
Parent taxon (Rarer genera): Less common genera
This taxon: Domed-shaped holococcoliths with holes or cavities.
Daughter taxa (time control age-window is: 0-800Ma) | ||||
Petrobrasiella venata Large, domed-shaped holococcoliths with holes or cavities. | ||||
Petrobrasiella sp. Specimens not identified to species level |
Taxonomy:
Farinacci & Howe catalog pages: Petrobrasiella * , Athenagalea *
Distinguishing features:
Parent taxon (Rarer genera): Less common genera
This taxon: Domed-shaped holococcoliths with holes or cavities.
Search data:
CA: holococcolith, pores, |
Lith size: 8->15µm; Data source notes: size range of included species |
Geological Range:
Last occurrence (top): at top of Campanian Stage (100% up, 72.2Ma, in Campanian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Santonian Stage (83.65-85.70Ma, base in Santonian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 132-199. gs O Hattner, J. G. & Wise, S. W. (1980). Upper Cretaceous calcareous nannofossil biostratigraphy of South Carolina. South Carolina Geology. 24: 41-117. gs Troelsen, J. & Quadros, L. P. (1971). Distribuição bioestratigráfica dos nanofósseis em sedimentos marinhos (Aptiano-Mioceno) do Brasil. Anais da Academia Brasileira de Ciencias. 43, 577-609: suplemento-. gsReferences:
Petrobrasiella compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-9-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10894 Go to Archive.is to create a permanent copy of this page - citation notes |
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