Parent taxon: Glyptocystitoida according to C. R. C. Paul and S. V. Rozhnov 2016
See also Beaver et al. 1967, Regnéll 1945 and Sumrall and Brett 2002
Sister taxa: none
Subtaxa: Adocetocystis Anartiocystis Apiocystinae Apiocystites Apiocystitinae Brockocystis Callocystites Callocystitinae Coelocystis Hallicystis Jaekelocystis Lepadocystis Lepocrinites Lipsanocystis Lovenicystis Maennilocystis Novacystis Prunocystites Pseudocrinites Salirocystis Sphaerocystites Staurocystinae Staurocystis Strobilocystites Tetracystis Troosticystis
Type: Callocystites
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Devonian of United States (5: Iowa, New York, West Virginia, Maryland, Pennsylvania collections)
• Silurian of Canada (2: Ontario), Sweden (1), Ukraine (1), the United Kingdom (3), United States (23: California, Illinois, Indiana, Iowa, Missouri, New York, Ohio, West Virginia, Wisconsin)
• Ordovician of Estonia (2), United States (9: Illinois, Illinois, Iowa, Indiana, Iowa, Ohio, Oklahoma)
Total: 46 collections including 59 occurrences