Conodonta - Ozarkodinida - Pterospathodontidae
Parent taxon: Ozarkodinida according to W. C. Sweet 1988
See also Clark et al. 1981
Sister taxa: Anchignathodontidae, Elictognathidae, Ellisoniidae, Gamachignathus, Gondolellidae, Gondolellidea, Gondolelloidea, Idiognathodontidae, Kockelellidae, Microzarkodina, Ozarkodinina, Palmatolepididae, Periodon, Plectodina, Spathognathodontidae, Spathognathodontodae, Vjalovognathidae
Subtaxa: Apsidognathus Astropentagnathus Aulacognathus Carniodus Galerodus Icriognathus Johnognathus Polygnathoides
Type: Pterospathodus
Ecology: nektonic carnivore
Distribution:
• Niagaran of Canada (3: Québec collections)
• Silurian of Australia (3), Austria (3), Bulgaria (1), Canada (31: British Columbia, Cape Manning, Cornwallis Island, Manitoba, Nunavut, Ontario, Quebec, Québec), China (8), the Czech Republic (7), Estonia (8), Greece (2), Greenland (43), Italy (3), Morocco (1), the Russian Federation (2), Sweden (27), Thailand (1), the United Kingdom (1), United States (113: California, Indiana, Iowa, Kentucky, Missouri, Nevada, New York, Ohio, Oklahoma, Utah, West Virginia, Wisconsin)
• Ordovician to Silurian of Canada (1: Nunavut)
• Ordovician to Devonian of Canada (2: Nunavut)
• Ordovician of Spain (2), Sweden (1)
Total: 263 collections including 399 occurrences