|Daughter taxa (time control age-window is: 0-800Ma)|
Liths with broad flat rim and central depression, hexagonal mesh fabric.
Liths with broad rim, which rises slightly higher than the central cover; cover with hexagonal mesh fabric; one tooth-like boss on the rim.
Distinguishing features: Monomorphic - cavate
Coccoliths with broad rim and recessed distal cover without boss
Farinacci & Howe catalog pages: Calyptrosphaera -flat [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 top of No known fossil record modern (100% up, 0Ma, in "Holocene" stage). Data source: Total of range of species in this database
Plot of occurrence data:
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