flat dimorphic

Daughter taxa: (blue => in age window 0-800Ma)
				Syracosphaera nana HOL BCs disk with double layer of irregularly arranged crystallites; CFCs with transverse ridge
				Syracosphaera strigilis HOL BCs solid disk with transverse ridge; CFCs with elevated transverse bridge

Taxonomy:

Distinguishing features: BCs disks, may have ridge
CFCs with transverse ridge of bridge

Farinacci & Howe catalog pages: flat dimorphic [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: tubeless

flat dimorphic compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-1-2021 Taxon Search: Advanced Search Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=580 Go to Archive.is to create a permanent copy of this page - citation notes

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