Gastropoda - Cerithimorpha - Orthonemidae

Alternative combination: Stegocoelia (Hypergonia) percarinata

Full reference: J. D. Longstaff. 1926. A revision of the British Carboniferous Murchisoniidae. Quarterly Journal of the Geological Society of London 82:526-556

Belongs to Hypergonia according to P. J. Wagner 2011

Sister taxa: Hypergonia agraciada, Hypergonia attenuata, Hypergonia baldwinensis, Hypergonia elongata, Hypergonia hoffmani, Hypergonia illinoiensis, Hypergonia kirkbyi, Hypergonia marvinwelleri, Hypergonia percostata, Hypergonia prolixa, Hypergonia quadricarinata, Hypergonia tatei, Hypergonia tenuis, Hypergonia turritella, Hypergonia vermicula, Stegocoelia (Hypergonia) acuminata, Stegocoelia (Hypergonia) cincta, Stegocoelia (Hypergonia) jonathanensis, Stegocoelia (Hypergonia) korobkovi

Ecology: epifaunal