†family Chirognathidae Branson and Mehl 1944 (conodont)
Conodonta - Prioniodontida - Chirognathidae
Parent taxon: Prioniodinida according to L. J. Pyle and C. R. Barnes 2002
See also Clark et al. 1981 and Sweet 1988
Sister taxa: Prioniodinidae, Pseudooneotodus
Subtaxa: Curtognathus Oistodella Spinodus
Ecology: nektonic carnivore
Distribution:
• Whiterockian of Canada (1: British Columbia collection)
• Ordovician of Argentina (11), Canada (23: British Columbia, Newfoundland, Northwest Territories), China (8), Kazakhstan (1), New Zealand (2), the Russian Federation (4), Sweden (1), United States (6: Iowa, Minnesota, Missouri, Oklahoma)
Total: 57 collections including 70 occurrences