Nannotax3 - ntax_mesozoic - Mesozoic non–coccoliths

Mesozoic non–coccoliths


Classification: ntax_mesozoic -> Mesozoic non–coccoliths
Sister taxa: Arkhangelskiales, Eiffellithales, Stephanolithiales, Podorhabdales, Watznaueriales, Syracosphaerales, Heterococcoliths inc sedis ⟩⟨ Holococcoliths, Braarudosphaerales, Nannoliths inc sedis, Mesozoic non–coccoliths, hidden

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

C. tabellata
C. sp.

Cassianospica

C. curvata
C. sp.

Prinsiosphaera
Spherical, solid nannolith formed from stacked groups of calcite plates.
P. triassica
P. sp.

Schizosphaerellaceae
Large globular test with two interlocking sub-hemispherical valves formed from a geometric arrangement of equidimensional crystallites.
Schizosphaerella

Taxonomy:

Rank: Informal group of families

Taxonomic discussion:
Most non-coccoliths are included in the non-coccoliths module ("Other groups" item in the menubar), these taxa are included here, however, since they are very characteristic parts of early Mesozoic nannofossil assemblages.

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]. 

Search data:
TagsLITHS:
MetricsLith size: 0->0µm;
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, 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:

References:


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Mesozoic non–coccoliths compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-11-2021

Taxon Search:
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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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