flat (coccolithaceae HOLs)

Daughter taxa (time control age-window is: 0-800Ma)
				Calcidiscus leptoporus subsp. leptoporus HOL Disk with double layer of crystallites in hexagonal meshwork array
				Coccolithus pelagicus subsp. braarudii HOL Disk with single layer of crystallites arranged in radial strings
				Coccolithus pelagicus subsp. pelagicus HOL Disk with single layer of crystallites in irregular rhombohedral array

Taxonomy:

Distinguishing features: Liths are planar disks, variable ultrastructure. Cocospheres monomorphic. The species were formerly in Crystallolithus

Farinacci & Howe catalog pages:

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Gelasian Stage (0% up, 2.6Ma, in Gelasian 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: tubeless

flat (coccolithaceae HOLs) compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 4-3-2021 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=579 Go to Archive.is to create a permanent copy of this page - citation notes

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