Nannolith genera inc sed

Classification: ntax_cenozoic -> Nannolith families inc sed -> Nannolith genera inc sed
Sister taxa: Ceratolithaceae, Lapideacassaceae, Lithostromationaceae, Nannolith genera inc sed, Rhomboasteraceae

Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
extant genera
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

Unidentified nannoliths


Citation: Nannolith genera incertae sedis
Rank: informal group of genera

Distinguishing features: Three apparently unique genera, not-included in described families

Farinacci & Howe catalog pages: Nannolith genera inc sed [no catalog entry yet]

Search data:
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): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Coniacian Stage (0% up, 89.8Ma, in Coniacian stage). Data source: Total of range of species in this database

Plot of occurrence data:



Nannolith genera inc sed compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-6-2021

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Short stable page link: Go to to create a permanent copy of this page - citation notes

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