|Daughter taxa (time control age-window is: 0-800Ma)||Granddaughter taxa|
Nannoliths are tetrads of spines - “caltrops”. Cells monomorphic, saddle-shaped, with long flagella and haptonema.
Coccoliths formed of single angular calcite unti, coccospheres flower-like
Coccosphere formed of a few cap-shaped nannoliths
Nannoliths triradiate. Cells monomorphic.
Small to medium pentagonal liths, with narrow rim and granular central area plate. Dark image in LM.
Nannoliths kite-shaped plates with raised margin on both sides
Parent taxon (Nannolith families inc sed): Haptophytes forming calcareous structures not obviously homologous with heterococcoliths, holococcoliths, or discoasteralids
This taxon: Three apparently unique genera, not-included in described families
Farinacci & Howe catalog pages: Nannolith genera inc sed [no catalog entry yet]Search data:
|Metrics||Lith size: 0->0µm;|
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Coniacian Stage (0% up, 89.8Ma, in Turonian stage). Data source: Total of range of species in this database
Plot of occurrence data:
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