Yochelcionelloidea
Yochelcionelloidea is an extinct superfamily of paleozoic molluscs of uncertain position. The earliest yochelcionellids are known from the Middle Tommotian, but they are most diverse from the Botomian through the early Middle Cambrian.
2005 taxonomy
The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005:Yochelcionelloidea