Mesozoic non–coccoliths


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

Short diagnosis: 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 (blue => in age window 0-300Ma) Granddaughter taxa




Spherical, solid nannolith formed from stacked groups of calcite plates.

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

Taxonomy:

Rank: informal group
Notes & discussion: Mot non-coccoliths are included in the non-coccoliths module (calc-dinos+ item in the menubar), these taxa are included here since they are very characteristic parts of Mesozic assemblages.

Farinacci & Howe catalog pages:

Short diagnosis: Calcispheres and other non-coccoliths found in nannofossil preps. Some taxa previously placed here have been moved to the calcareous dinoflagellates pages [Feb 2017]. 

Geological Range:
Last occurrence (top): within Kimmeridgian Stage (152.06-157.25Ma, top in Kimmeridgian stage). Data source: Total of range of species in this database
First occurrence (base): within Carnian Stage (228.35-237.00Ma, base in Carnian stage). Data source: Total of range of species in this database

Plot of occurrence data:


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Mesozoic non–coccoliths compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-8-2017

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