Nannotax3 - ntax_mesozoic - Prinsiosphaera

Prinsiosphaera


Classification: ntax_mesozoic -> Mesozoic non–coccoliths -> Prinsiosphaera
Sister taxa: Carnicalyxia, Cassianospica, Prinsiosphaera, Schizosphaerellaceae

Distinguishing features:
Parent taxon (Mesozoic non–coccoliths): Calcispheres and other non-coccoliths found in nannofossil preps. Some taxa previously placed here have been moved to the calcareous dinoflagellates pages [Feb 2017]. 
This taxon: Spherical, solid nannolith formed from stacked groups of calcite plates.


Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Prinsiosphaera triassica
Medium to large spherical solid nannolith formed from stacked groups of calcite plates.
P. triassica subsp. crenulata

Prinsiosphaera sp.
Specimens not identified to species level

Taxonomy:

Citation: Prinsiosphaera Jafar, 1983
Rank: Genus
Type species: Prinsiosphaera triassica Jafar, 1983.

Farinacci & Howe catalog pages: Prinsiosphaera *

Distinguishing features:
Parent taxon (Mesozoic non–coccoliths): Calcispheres and other non-coccoliths found in nannofossil preps. Some taxa previously placed here have been moved to the calcareous dinoflagellates pages [Feb 2017]. 
This taxon: Spherical, solid nannolith formed from stacked groups of calcite plates.

Search data:
TagsLITHS: nannolith-other, circular, hollow,
MetricsLith size: 5->10µm;
Data source notes: size range of included species
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): near base of Hettangian Stage (10% up, 201.1Ma, in Hettangian stage). Data source: Total of range of species in this database
First occurrence (base): in lower part of Norian Stage (29% up, 222.9Ma, in Norian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bown, P. R. (1998b). Triassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 29-33. gs

Jafar, A. S. (1983). Significance of Late Triassic calcareous nannoplankton from Austria and Southern Germany. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 166: 218-259. gs


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Prinsiosphaera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-10-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10946 Go to Archive.is to create a permanent copy of this page - citation notes



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