Full reference: R. C. Moore and L. R. Laudon. 1943. Evolution and classification of Paleozoic crinoids. Geological Society of America Special Paper 46:1-151
Parent taxon: Cyathoformes according to G. D. Webster et al. 2025
Sister taxa: Barycrinus, Botryocrinus, Cromyocrinoidea, Cyathocrinida, Dendrocrinida, Erisocrinoidea, Lophocrinoidea, Poteriocrinida, Texacrinoidea
Subtaxa: none
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Permian of Indonesia (5 collections), Mexico (1), Oman (4), Pakistan (2), Thailand (1), United States (8: Nebraska, Nevada, Oklahoma, Texas, Utah)
• Namurian of Spain (1)
• Carboniferous to Permian of United States (2: Utah)
• Carboniferous of Australia (1), Canada (1: Alberta), China (1), Iran (1), Ireland (1), the United Kingdom (10), United States (73: Alabama, Illinois, Indiana, Iowa, Kansas, Kentucky, Montana, Nebraska, Ohio, Oklahoma, Texas)
• Devonian of China (2), Mongolia (1), United States (4: Colorado, New York, Ohio)
Total: 119 collections including 170 occurrences