†family Rugaeconidae Vassiljeva 1990 (mollusk)
Helcionelloida - Helcionellida - Rugaeconidae
Parent taxon: Yochelcionelloidea according to P. Y. Parkhaev and Y. Demidenko 2010
Sister taxon: Trenellidae
Subtaxa: Xianfengella
Ecology: slow-moving low-level epifaunal grazer
Distribution:
• Cambrian of Antarctica (1 collection), Australia (4), China (14), France (2), Greenland (5), the Russian Federation (1)
Total: 27 collections including 28 occurrences