Omphalocirridae
Omphalocirridae is an extinct family of Paleozoic molluscs with anisostrophically coiled shells of uncertain position (Gastropoda?).
Taxonomy
The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 categorizes Omphalocirridae in the superfamilia Euomphaloidea within the Paleozoic molluscs with anisostrophically coiled shells of uncertain position (Gastropoda?). This family has no subfamilies.Genera
Genera in the family Omphalocirridae include:Omphalocirrus Ryckholt, 1860 - type genus of the family Omphalocirridae - synonyms: Hypomphalocirrus and Arctomphalus.- ''Liomphalus''