Parent taxon: Eucladida according to Y. Y. Mao et al. 2018
See also Ausich and Cournoyer 2019
Sister taxa: Articulata, Cyathoformes
Subtaxa: Botryocrinidae Plicodendrocrinidae
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Carboniferous of Iran (1 collection), United States (75: Indiana, Kentucky, Oklahoma, Tennessee)
• Couvinien of Germany (1), United States (1: Kentucky)
• Devonian of Antarctica (2), Australia (2), Canada (4: Ontario), the Czech Republic (1), France (5), Germany (3), Poland (5), Spain (1), United States (41: Indiana, Iowa, Kentucky, New York, Ohio)
• Silurian of Canada (4: Quebec), the Czech Republic (1), Sweden (1), the United Kingdom (1), United States (13: Indiana, Iowa, Missouri, New York, Oklahoma, Tennessee)
• Ordovician of Canada (6: Ontario, Quebec), United States (11: Illinois, Iowa, Iowa, Kentucky, Minnesota, Ohio)
Total: 179 collections including 256 occurrences