†order Porocrinida Miller and Gurley 1894
Alternative spelling: Porocrinidae
Parent taxon: Porocrinoidea according to D. F. Wright et al. 2017
See also Ausich 1998, Ausich and Copper 2010, Sprinkle 1982, Ubaghs et al. 1978 and Wright et al. 2019
Sister taxon: Hybocrinida
Subtaxa: Carabocrinus Illemocrinus Palaeocrinus Porocrinus Triboloporus
Type: Porocrinus
Distribution:
• Chazyan of Canada (1: Quebec collection)
• Ordovician of Canada (13: Nunavut, Ontario, Quebec), the United Kingdom (1), United States (70: Illinois, Illinois, Iowa, Iowa, Iowa, Illinois, Kentucky, Minnesota, Missouri, Oklahoma, Tennessee, Virginia, illinois)
Total: 85 collections including 166 occurrences