Parent taxon (Helladosphaera): Dimorphic; BCs with regular bridge.
CFCs with bridge extended into leaf (helladolith)
This taxon: Specimens which cannot be assigned to established species
Farinacci & Howe catalog pages:
Ecology & Biogeography
Biology & life-cycles
Cultures: Strains of this species are maintained in culture, for details see Roscoff Culture Collection.
|Lith size: 0->0µm; |
Data source notes: RCC
Last occurrence (top): Extant. Data source: same as genus
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: same as genus
Plot of occurrence data:
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