Parent taxon: Glyptocystitoida according to C. R. C. Paul and S. V. Rozhnov 2016
See also Beaver et al. 1967, Parsley 1981 and Parsley and Sumrall 2007
Sister taxa: none
Subtaxa: Deltacystinae Henicocystinae Hillocystis Pleurocystitinae
Type: Pleurocystites
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Devonian of Australia (2 collections), the Czech Republic (3), Germany (5), United States (1: Oklahoma)
• Silurian to Devonian of United States (1: Oklahoma)
• Ordovician of Canada (21: Ontario, Quebec), the United Kingdom (5), United States (60: Illinois, Illinois, Iowa, Iowa, Iowa, Illinois, Kentucky, Minnesota, Missouri, Nevada, Oklahoma, Pennsylvannia, Tennessee, Virginia, Wisconsin, illinois)
Total: 98 collections including 120 occurrences