Parent taxon: Glyptocystitoida according to C. R. C. Paul et al. 2019
See also Beaver et al. 1967, Broadhead and Sumrall 2003, Paul and Rozhnov 2016, Regnéll 1945 and Sumrall and Schumacher 2002
Sister taxa: none
Subtaxa: Acanthalepis Cheirocrinus Cheirocystella Cheirocystis Coronocystis Hadrocystis Homocystites Leptocystis Sprinkleocystis
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Silurian of the United Kingdom (2 collections), United States (6: New York)
• Dobrotivian of the Czech Republic (1)
• Chazyan of Canada (2: Quebec), United States (1: Oklahoma)
• Arenig of France (1), Sweden (1)
• Ordovician of Belgium (1), Canada (8: Nunavut, Ontario, Quebec), the Czech Republic (4), France (2), Greenland (1), Norway (2), the Russian Federation (1), Spain (1), Sweden (17), Thailand (1), the United Kingdom (6), United States (54: Illinois, Iowa, Kentucky, Michigan, Minnesota, Nevada, New York, Oklahoma, Tennessee, Utah, Virginia, illinois)
• Tremadoc of France (6)
Total: 118 collections including 125 occurrences