†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

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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

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