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]
Search data:Tags | LITHS: |
Metrics | Lith size: 0.8->1.5µm; |
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:
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flat dimorphic compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-1-2021
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 |