†family Phragmodontidae Bergström 1981 (conodont)
Conodonta - Prioniodontida - Phragmodontidae
Parent taxon: Prioniodontoidea according to S. Stouge and G. Bagnoli 1999
See also Clark et al. 1981 and Donoghue et al. 2008
Sister taxa: Icriodontidae, Oepikodontidae, Polyplacognathidae
Subtaxa: Acanthocordylodus Gothodus
Ecology: nektonic carnivore
Distribution:
• Arenig of China (2 collections)
• Ordovician of Canada (10: Newfoundland), China (9), Iran (3), Kazakhstan (2), Peru (1), the Russian Federation (9), Sweden (2), United States (1: Utah)
• Tremadoc of Mexico (2)
Total: 41 collections including 51 occurrences