Conodonta - Protopanderodontida - Cornuodontidae
Full reference: S. S. Stouge. 1984. Conodonts of the Middle Ordovician Table Head Formation, western Newfoundland. Fossils and Strata 16:1-145
Parent taxon: Protopanderodontida according to L. J. Pyle and C. R. Barnes 2002
See also Dzik 1994 and Stouge 1984
Sister taxa: Acanthodontidae, Clavohamulidae, Drepanoistodontidae, Oneotodontidae, Protopanderodontidae, Serratognathidae
Ecology: nektonic carnivore
Distribution:
• Aluoja of Sweden (7 collections)
• Billingen of Estonia (3)
• Arenig of Argentina (2), China (10)
• Dawan of China (1)
• Ordovician of Argentina (13), Austria (5), Canada (9: British Columbia, Newfoundland, Newfoundland and Labrador, Ontario), China (12), Estonia (8), Germany (1), Ireland (1), Italy (1), Malaysia (2), New Zealand (2), Poland (10), the Russian Federation (12), Sweden (1), Thailand (2), United States (2: Colorado, Nevada)
Total: 104 collections including 105 occurrences