Gastropoda - Cerithimorpha - Orthonemidae
Alternative spellings: Murchisonia (Hypergonia), Stegocoelia (Hypergonia)
Full reference: J. G. Donald. 1892. Notes on some new and little known species of Carboniferous Murchisonia. Quarterly Journal of the Geological Society of London 48:562-575
Parent taxon: Orthonemidae according to P. J. Wagner 2023
See also Bandel 2002, Donald 1892, Knight et al. 1960, Longstaff 1926 and Sepkoski 2002
Sister taxa: Carinanema, Cibecuia, Donaldospira, Heshanietta, Knightella, Leptozyga, Microlampra, Ohiopupa, Palaeostylus
Subtaxa: Hypergonia agraciada Hypergonia attenuata Hypergonia baldwinensis Hypergonia deplanata Hypergonia elongata Hypergonia hoffmani Hypergonia illinoiensis Hypergonia kirkbyi Hypergonia marvinwelleri Hypergonia mcoyi Hypergonia percarinata Hypergonia percostata Hypergonia prolixa Hypergonia quadricarinata Hypergonia tatei Hypergonia tenuis Hypergonia turritella Hypergonia vermicula Hypergonia youngiana Murchisonia (Hypergonia) fastigiata Stegocoelia (Hypergonia) acuminata Stegocoelia (Hypergonia) cincta Stegocoelia (Hypergonia) jonathanensis Stegocoelia (Hypergonia) korobkovi
Distribution:
• Permian of United States (2: Wyoming collections)
• Carboniferous of Australia (7), Belgium (1), China (1), Poland (2), the United Kingdom (4), United States (26: Illinois, Indiana, Iowa, Kentucky, New Mexico, Ohio, Oklahoma, Texas)
Total: 43 collections including 61 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.