Distinguishing features:
Parent taxon (ntax_mesozoic): Mesozoic nannofossils - Cenozoic and extant taxa are in a separate module
This taxon: Calcispheres and other non-coccoliths found in nannofossil preps. Some taxa previously placed here have been moved to the calcareous dinoflagellates pages [Feb 2017].
Daughter taxa (time control age-window is: 0-800Ma)![]() | Granddaughter taxa | ||||
![]() | Carnicalyxia | ||||
![]() | Cassianospica | ||||
![]() | ![]() | Prinsiosphaera Spherical, solid nannolith formed from stacked groups of calcite plates. | |||
![]() | ![]() | Schizosphaerellaceae Large globular test with two interlocking sub-hemispherical valves formed from a geometric arrangement of equidimensional crystallites. |
Taxonomy:
Farinacci & Howe catalog pages: Mesozoic non–coccoliths [no catalog entry yet]
Distinguishing features:
Parent taxon (ntax_mesozoic): Mesozoic nannofossils - Cenozoic and extant taxa are in a separate module
This taxon: Calcispheres and other non-coccoliths found in nannofossil preps. Some taxa previously placed here have been moved to the calcareous dinoflagellates pages [Feb 2017].
Morphology:
Size:
Tags | LITHS: |
Metrics | Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): at top of Kimmeridgian Stage (100% up, 152.1Ma, in Kimmeridgian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Carnian Stage (0% up, 237Ma, in Carnian stage). Data source: Total of range of species in this database
Plot of occurrence data:
![]() |
Mesozoic non–coccoliths compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-5-2022
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10650 Go to Archive.is to create a permanent copy of this page - citation notes |
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