†family Cyrtophyllidae Sokolov 1950 (tabulate coral)

Anthozoa - Heliolitida - Cyrtophyllidae

Parent taxon: Proporicae according to D. Hill 1981

Sister taxa: Plasmoporellidae, Plasmoporidae, Proheliolitidae, Proporidae, Sibiriolitidae

Subtaxa: Cyrtophyllum Karagemia Rhaphidophyllum

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Ecology: stationary epifaunal suspension feeder-photosymbiotic

Distribution:

• Ordovician of Canada (6: Northwest Territories collections), China (1), the Russian Federation (13), United States (4: Alaska)

Total: 24 collections including 31 occurrences

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