|Daughter taxa (time control age-window is: 0-800Ma)||Granddaughter taxa|
Monomorphic. Coccoliths are organic scales with a few pyramidal ?crystallites.
Monomorphic. Rhombohedral crystallites forming 3 or 4 radial converging struts attached to a scale with calcareous rim
Monomorphic. Coccoliths are organic scales with a few rhombohedral crystallites arranged in squares.
Distinguishing features: Lightly calcified holococcoliths, <1µm across; typically organic scales with weak calcification
Farinacci & Howe catalog pages: tubeless-minute [no catalog entry yet]Search data:
|Metrics||Lith size: 0->0µm;|
Last occurrence (top): Extant Data source: present in the plankton
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: [JRY rough estimate]
Plot of occurrence data:
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