Parent taxon: Cornuta according to C. D. Sumrall et al. 2009
See also Lefebvre and Vizcaino 1999
Sister taxa: Amygdalotheca, Amygdalothecida, Arauricystis, Babinocystis, Ceratocystidae, Chauvelia, Galliaecystis, Phyllocystidae, Procothurnocystis, Protocystites
Subtaxa: Cothurnocystidae
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Carboniferous of the United Kingdom (2 collections)
• Arenig of Morocco (1), the United Kingdom (2)
• Ordovician of the Czech Republic (1), France (1), Morocco (2), Spain (1), the United Kingdom (3)
• Amgan of the Russian Federation (1)
• Delamaran of United States (1: Utah)
• Cambrian of South Korea (1), Spain (1), United States (9: Nevada, Utah, Wyoming)
Total: 26 collections including 30 occurrences