†family Rugaeconidae Vassiljeva 1990 (mollusk)
Helcionelloida - Helcionellida - Rugaeconidae
Parent taxon: Yochelcionelloidea according to P. Y. Parkhaev and Y. Demidenko 2010
Sister taxa: Trenellidae, Yochelcionellidae
Subtaxa: Dorispira Xianfengella
Ecology: slow-moving low-level epifaunal grazer
Distribution:
• Cambrian of Antarctica (1 collection), Australia (5), China (15), France (2), Germany (2), Greenland (9), Poland (2), the Russian Federation (1), United States (3: Idaho, Utah)
• Solvan of Morocco (3)
• Delamaran of United States (1: Idaho)
• Ordian of Australia (1)
Total: 45 collections including 51 occurrences