Crinoidea - Monobathrida - Periechocrinidae
Parent taxon: Periechocrinacea according to W. I. Ausich and T. W. Kammer 2008
See also Ubaghs et al. 1978
Sister taxa: Actinocrinitidae, Amphoracrinidae, Sunwaptacrinidae
Subtaxa: Acacocrinus Aryballocrinus Athabascacrinus Beyrichocrinus Clitheroecrinus Corocrinus Ibanocrinus Lenneocrinus Mandelacrinus Mcoycrinus Periechocrinus Pithocrinus Pradocrinus Pyxidocrinus Saaremaacrinus Stamnocrinus Stiptocrinus Thamnocrinus Tirocrinus
Ecology: stationary upper-level epifaunal suspension feeder
Distribution:
• Carboniferous of Australia (2 collections), Canada (1: Alberta)
• Devonian of Canada (1: Ontario), South Africa (3), Spain (2), United States (3: Michigan, Ohio, Tennessee)
• Silurian of Canada (1: Ontario), the Czech Republic (1), the United Kingdom (2), United States (28: Illinois, Indiana, Iowa, New York, Ohio, Tennessee, West Virginia, Wisconsin)
Total: 44 collections including 61 occurrences