†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 to Ordovician of Poland (1 collection)

• Cambrian of Antarctica (1), Australia (6), China (15), France (2), Germany (2), Greenland (9), Poland (1), the Russian Federation (1), United States (4: Idaho, Utah)

• Solvan of Morocco (3)

Total: 45 collections including 51 occurrences

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