Conodonta - Prioniodontida - Strachanognathidae
Parent taxon: Prioniodontida according to H. A. Armstrong 1997
See also Clark et al. 1981 and Dzik 1994
Sister taxa: Acodontidae, Anticostiodus, Balognathidae, Balognathoidea, Cyrtoniodontidae, Distomodontidae, Histiodella, Multioistodontidae, Oepikodus, Oistodontidae, Paracordylodontidae, Paracordylodus, Periodontidae, Phragmodus, Plectodinidae, Prioniodinida, Prioniodinina, Prioniodontacea, Rhipidognathidae, Sagittodontina
Subtaxa: Decoriconus Scabbardella Strachanognathus
Ecology: nektonic carnivore
Distribution:
• Devonian of Australia (6 collections), Austria (32), Morocco (9), United States (1: Texas)
• Silurian to Devonian of Australia (8)
• Silurian of Australia (20), Austria (2), Canada (41: British Columbia, Cape Manning, Cornwallis Island, Northwest Territories, Nunavut, Ontario, Quebec, Québec), Estonia (52), Greenland (9), Latvia (4), Lithuania (16), Morocco (2), Poland (5), the Russian Federation (8), Sweden (45), the United Kingdom (5), United States (133: Illinois, Missouri, New York, Oklahoma, Tennessee, Texas, Wisconsin)
• Aluoja of Sweden (7)
• Volkhov of Estonia (10), the Russian Federation (3)
• Arenig of Argentina (1), Canada (1: Ontario)
• Ordovician to Devonian of Canada (1: Nunavut)
• Ordovician to Silurian of Canada (1: Nunavut)
• Ordovician of Argentina (2), Austria (5), Canada (24: Cornwallis Island, Newfoundland, Newfoundland and Labrador, Northwest Territories, Québec), China (21), the Czech Republic (3), Denmark (1), Estonia (5), Germany (1), Ireland (1), Italy (1), Malaysia (17), Norway (1), Poland (18), the Russian Federation (6), Spain (1), Sweden (16), Thailand (11), United States (5: Nevada, Oklahoma)
Total: 561 collections including 580 occurrences