Gastropoda - Cerithimorpha - Orthonemidae

Alternative combination: Stegocoelia (Hypergonia) hoffmani

Full reference: B. S. Kues and R. L. Batten. 2001. Middle Pennsylvanian gastropods from the Flechado Formation, north-central New Mexico. Journal of Paleontology 75(1, supp):1-95

Belongs to Hypergonia according to P. J. Wagner 2011

Sister taxa: Hypergonia agraciada, Hypergonia attenuata, Hypergonia baldwinensis, Hypergonia elongata, Hypergonia illinoiensis, Hypergonia kirkbyi, Hypergonia marvinwelleri, Hypergonia percarinata, 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

Type specimen: Its type locality is Talpa, which is in a Desmoinesian delta front siliciclastic/sandstone in the Flechado Formation of New Mexico

Ecology: epifaunal