†family Glyptocystitidae Bather 1899
Parent taxon: Glyptocystitoida according to C. R. C. Paul and S. V. Rozhnov 2016
See also Beaver et al. 1967 and Sprinkle 1982
Sister taxa: none
Subtaxa: Glyptocystella Glyptocystites Hesperocystis Quadrocystis Strabocystis
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Whiterockian of United States (4: California collections)
• Chazyan of Canada (1: Quebec), United States (1: New York)
• Ordovician of Canada (10: Ontario, Quebec), Greenland (1), the United Kingdom (1), United States (19: Idaho, Illinois, Iowa, Minnesota, Missouri, Oklahoma)
Total: 37 collections including 46 occurrences