Alternative spelling: Prioniodontoidea
Parent taxon: Prioniodontida according to A. Mestre and S. Heredia 2013
See also Clark et al. 1981 and Stouge and Bagnoli 1999
Sister taxa: Acodontidae, Anticostiodus, Balognathidae, Balognathoidea, Cyrtoniodontidae, Distomodontidae, Histiodella, Multioistodontidae, Oepikodus, Oistodontidae, Paracordylodontidae, Paracordylodus, Periodontidae, Phragmodus, Plectodinidae, Prioniodinida, Prioniodinina, Rhipidognathidae, Sagittodontina, Strachanognathidae
Subtaxa: Icriodontidae Oepikodontidae Phragmodontidae Polyplacognathidae
Type: Prioniodidae
Ecology: nektonic carnivore
Distribution:
• Givetian of the Russian Federation (1 collection)
• Devonian to Triassic of Greece (1)
• Devonian of Afghanistan (1), Algeria (7), Australia (46), Austria (76), Belgium (56), Bulgaria (18), Canada (81: Northwest Territories, Nunavut, Ontario, Yukon), China (36), Czechia (48), France (65), Germany (65), Greece (3), Iran (13), Italy (15), Mongolia (1), Morocco (166), New Zealand (1), Poland (72), Portugal (1), the Russian Federation (27), Spain (75), Tajikistan (5), Thailand (3), Türkiye (3), Ukraine (5), United States (121: Alaska, Arizona, California, Indiana, Iowa, Michigan, Minnesota, Nevada, New York, Ohio, Texas), Uzbekistan (2), Vietnam (1), Western Sahara (2)
• Silurian to Devonian of Algeria (1), Australia (4)
• Silurian of Australia (6), Austria (4), Canada (1: Nunavut), Czechia (6), Sweden (3), Ukraine (1), United States (32: Nevada)
• Aluoja of Sweden (8)
• Chazyan of United States (1: Tennessee)
• Whiterockian of United States (5: Nevada)
• Arenig of Argentina (2), China (2)
• Ordovician of Argentina (16), Canada (15: British Columbia, Newfoundland, Northwest Territories), China (16), Estonia (2), Iran (3), Kazakhstan (3), Lithuania (1), Mexico (2), Peru (1), the Russian Federation (25), Sweden (4), United States (14: Iowa, Minnesota, Missouri, New York, Oklahoma, Utah)
Total: 1195 collections including 1917 occurrences