Conodonta - Prioniodontida - Rhipidognathidae
Parent taxon: Prioniodontida according to L. J. Pyle and C. R. Barnes 2002
See also Clark et al. 1981
Sister taxa: Acodontidae, Anticostiodus, Balognathidae, Balognathoidea, Cyrtoniodontidae, Distomodontidae, Histiodella, Multioistodontidae, Oepikodus, Oistodontidae, Paracordylodontidae, Paracordylodus, Periodontidae, Phragmodus, Plectodinidae, Prioniodinida, Prioniodinina, Prioniodontacea, Sagittodontina, Strachanognathidae
Subtaxa: Appalachignathus Bergstroemognathus Rhipidognathus Tasmanognathus
Ecology: nektonic carnivore
Distribution:
• Silurian of Sweden (5 collections)
• Chazyan of United States (1: Virginia)
• Arenig of Argentina (2), China (6), Norway (1)
• Dawan of China (1)
• Ordovician to Silurian of Canada (1: Nunavut)
• Ordovician of Argentina (2), Australia (7), Canada (13: British Columbia, Manitoba, Northwest Territories, Québec), China (10), Greenland (4), Iran (2), Kazakhstan (1), Malaysia (2), New Zealand (1), the Russian Federation (4), United States (2: Kentucky, Tennessee)
• Ibexian of United States (1: New York)
Total: 66 collections including 74 occurrences