Parent taxon: Flexibilia according to D. F. Wright et al. 2017
See also Ausich 1998, Ausich and Copper 2010, Sepkoski 2002, Ubaghs et al. 1978, Webster et al. 1999 and Wright et al. 2019
Sister taxa: Cupulocrinidae, Edriocrinidae, Icthyocrinus, Metichthyocrinus, Pinnata, Sagenocrinida, Taxocrinoidea
Subtaxa: Haereticotaxocrinus Paerticrinidae Pepitaxoncrinus Praeorocrinus Taxocrinacea
Ecology: stationary epifaunal suspension feeder
Distribution:
• Carboniferous of Canada (1: Alberta collection), Iran (1), the United Kingdom (5), United States (51: Illinois, Indiana, Iowa, Kansas, Kentucky, Oklahoma, Tennessee, Texas)
• Devonian of Australia (1), China (5), the Czech Republic (2), France (1), Germany (3), Mongolia (1), United States (13: Colorado, Iowa, New York, Ohio)
• Silurian of Canada (11: Ontario, Quebec), the Czech Republic (2), Estonia (1), the United Kingdom (3), United States (6: New York, Oklahoma, West Virginia)
• Ordovician of Canada (4: Ontario, Quebec), the United Kingdom (2), United States (2: Illinois, Iowa, Iowa)
Total: 115 collections including 145 occurrences