Gastropoda - Cyrtoneritida - Orthonychiidae
Full reference: K. Bandel and J. Frýda. 1999. Notes on the evolution and higher classification of the subclass Neritimorpha (Gastropoda) with the description of some new taxa. Geologica et Palaeontologica 33(2):219-235
Parent taxon: Cyrtoneritimorpha according to P. Bouchet et al. 2005
See also Bandel and Frýda 1999
Sister taxon: Vltaviellidae
Subtaxa: Orthonychia
Ecology: epifaunal
Distribution:
• Permian of Cambodia (3 collections), Laos (1), Mexico (1), Peru (5), the Russian Federation (1), Thailand (1), United States (28: New Mexico, Texas)
• Carboniferous of Canada (1: Alberta), Mexico (1), Poland (1), the Russian Federation (2), the United Kingdom (1), United States (53: Alabama, Alaska, Arizona, Arkansas, California, Illinois, Iowa, Kentucky, Missouri, Nevada, New Mexico, Ohio, Pennsylvania)
• Devonian of Australia (2), Austria (7), Canada (9: Northwest Territories, Quebec), the Czech Republic (2), France (2), Italy (2), Morocco (1), the United Kingdom (4), United States (14: Indiana, Maine, Maryland, Michigan, Montana, Nevada, New York, West Virginia)
• Silurian to Devonian of the Czech Republic (1)
• Silurian of Canada (1: Nunavut), the Czech Republic (7), Norway (1), Sweden (4)
Total: 156 collections including 186 occurrences