†Cyathactis Soshkina 1955 (horn coral)
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Anthozoa - Stauriida - Ptychophyllidae
Parent taxon: Ptychophyllidae according to D. Hill 1981
See also Kaljo 1958, Merriam 1972 and Sepkoski 2002
Sister taxa: Implicophyllum, Ptychophyllum
Subtaxa: Cyathactis balticus Cyathactis gazellensis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Vietnam (1 collection)
• Silurian of Australia (1), Canada (6: Quebec), Estonia (1), Mongolia (1), the Russian Federation (8), United States (10: Alaska, California, Kentucky)
• Ordovician to Silurian of the Russian Federation (1)
• Ordovician of Canada (1: Quebec)
Total: 30 collections including 33 occurrences
Specimen images are retrieved through the ePANDDA API.
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