Nannotax3 - ntax_mesozoic - Schizosphaerella Nannotax3 - ntax_mesozoic - Schizosphaerella

Schizosphaerella


Classification: ntax_mesozoic -> Mesozoic non–coccoliths -> Schizosphaerellaceae -> Schizosphaerella
Sister taxa: Schizosphaerella

Distinguishing features:
Parent taxon (Schizosphaerellaceae): Large globular test with two interlocking sub-hemispherical valves formed from a geometric arrangement of equidimensional crystallites.
This taxon: Large globular test with two interlocking sub-hemispherical valves formed from a geometric arrangement of equidimensional crystallites.


Daughter taxa (time control age-window is: 0-800Ma)
Schizosphaerella punctulata
Large globular test with two interlocking sub-hemispherical valves formed from a geometric arrangement of equidimensional crystallites.
Schizosphaerella sp.
Specimens not identified to species level

Taxonomy:

Citation: Schizosphaerella Deflandre & Dangeard, 1938
Taxonomic rank: genus
Type species: Schizosphaerella punctulata Deflandre and Dangeard, 1938.
Synonyms: Nannopatina Stradner 1961 Nipterula Farinacci 1969

Farinacci & Howe catalog pages: Schizosphaerella * , Nannopatina * , Nipterula *

Distinguishing features:
Parent taxon (Schizosphaerellaceae): Large globular test with two interlocking sub-hemispherical valves formed from a geometric arrangement of equidimensional crystallites.
This taxon: Large globular test with two interlocking sub-hemispherical valves formed from a geometric arrangement of equidimensional crystallites.

Search data:
LITHS: nannolith-other, circular, hollow,
Lith size: 8->12µm;
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): at top of Kimmeridgian Stage (100% up, 149.2Ma, in Tithonian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within NJ1 zone (199.66-201.26Ma, base in Hettangian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:

Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 34-85. gs O

Deflandre, G. & Dangeard, L. (1938). Schizosphaerella, un nouveau microfossile méconnu du Jurassique moyen et supérieur. Comptes rendus hebdomaire de l'Académie des sciences, Paris. 207: 1115-1117. gs


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Schizosphaerella compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-1-2025

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=11069 Go to Archive.is to create a permanent copy of this page - citation notes
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