Calyptrosphaera -flat

Daughter taxa (time control age-window is: 0-800Ma)
				Calyptrosphaera cialdii Liths with broad flat rim and central depression, hexagonal mesh fabric.
				Calyptrosphaera dentata Liths with broad rim, which rises slightly higher than the central cover; cover with hexagonal mesh fabric; one tooth-like boss on the rim.

Taxonomy:

Distinguishing features: Monomorphic - cavate
Coccoliths with broad rim and recessed distal cover without boss

Farinacci & Howe catalog pages: Calyptrosphaera -flat [no catalog entry yet]

Geological Range:
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:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Neptune data: this is a higher taxon page so Neptune data is not plotted. For the customisable plot option go to a genus page Parent: flat-topped

Calyptrosphaera -flat compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-4-2021 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=216 Go to Archive.is to create a permanent copy of this page - citation notes

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