Conodonta - Prioniodontida - Distomodontidae
Parent taxon: Prioniodontida according to L. J. Pyle and C. R. Barnes 2002
See also Clark et al. 1981 and Sweet 1988
Sister taxa: Acodontidae, Anticostiodus, Balognathidae, Balognathoidea, Cyrtoniodontidae, Histiodella, Multioistodontidae, Oepikodus, Oistodontidae, Paracordylodontidae, Paracordylodus, Periodontidae, Phragmodus, Plectodinidae, Prioniodinida, Prioniodinina, Prioniodontacea, Rhipidognathidae, Sagittodontina, Strachanognathidae
Subtaxa: Coryssognathus Distomodus Rotundacodina
Type: Distomodus
Ecology: nektonic carnivore
Distribution:
• Devonian of Australia (1 collection), Morocco (1)
• Niagaran of Canada (3: Québec)
• Silurian of Argentina (1), Australia (29), Austria (5), Canada (86: British Columbia, Cape Manning, Cornwallis Island, Manitoba, Nunavut, Ontario, Quebec, Québec), China (2), Estonia (22), Germany (5), Greenland (15), Ireland (1), Italy (2), Jordan (1), Latvia (9), Mongolia (9), Norway (9), Poland (6), the Russian Federation (14), Sweden (33), the United Kingdom (82), United States (107: Indiana, Iowa, Kentucky, Missouri, Nevada, New York, Ohio, Tennessee, Utah, West Virginia, Wisconsin)
• Arenig of United States (1: Montana)
• Ordovician to Devonian of Canada (1: Nunavut)
• Ordovician to Silurian of Canada (5: Nunavut, Québec)
• Ordovician of Canada (1: Québec), Malaysia (1), Sweden (1), United States (4: Nevada, Oklahoma)
Total: 457 collections including 544 occurrences