Petasus faviformis

Classification: ntax_cenozoic -> Coccolith families inc sed -> Coccolith genera inc sed -> Petasus -> Petasus faviformis
Sister taxa: P. faviformis


Citation: Petasus faviformis (Perch-Nielsen 1968) Perch-Nielsen 1971
Rank: Species
Basionym: Naninfula faviformis Perch-Nielsen 1968

Distinguishing features: see generic diagnosis

Farinacci & Howe catalog pages: N. faviformis *

Morphology: The placolith base is clear in the holotype illustration of Perch-Nielsen (1968) and in the LMs of Varol (1998) this appears to differentiate it from both Rhabdosphaeraceae and holococcoliths.

Search data:
TagsLITHS: placolith, elliptical, CA: process,
MetricsLith size: 5->8µm;
Data source notes: lith size from 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 Late Eocene Sub-Epoch (33.89-37.75Ma, top in Priabonian stage). Data source: Perch-Nielsen 1968
First occurrence (base): within Late Eocene Sub-Epoch (33.89-37.75Ma, base in Priabonian stage). Data source: Perch-Nielsen 1968

Plot of occurrence data:


Perch-Nielsen, K. (1968a). Naninfula, genre nouveau a nannofossiles calcaires du Tertiaire danois. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, Paris. 267: 2298-2300. gs

Perch-Nielsen, K. (1971c). Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3): 1-76. gs

Varol, O. (1998). Palaeogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 200-224. gs


Petasus faviformis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 1-3-2021

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