†family Glyptocystidae Bather 1899
Parent taxon: Glyptocystoidea according to T. E. Guensburg 1984
Sister taxa: none
Subtaxa: Tanaocystis
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Ordovician of United States (12: Illinois, Iowa, Iowa, Minnesota, Oklahoma collections)
Total: 12 collections each including a single occurrence