†family Acanthodontidae Lindström 1970 (conodont)

Conodonta - Protopanderodontida - Acanthodontidae

Parent taxon: Protopanderodontida according to L. J. Pyle and C. R. Barnes 2002

See also Clark et al. 1981 and Sweet 1988

Sister taxa: Clavohamulidae, Cornuodontidae, Drepanoistodontidae, Oneotodontidae, Protopanderodontidae, Serratognathidae

Subtaxa: Acanthodus Parapaltodus Scalpellodus Ulrichodina

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Ecology: nektonic carnivore

Distribution:

• Devonian of United States (1: Nevada collection)

• Ordovician of Argentina (18), Australia (4), Canada (12: British Columbia, Newfoundland, Quebec), China (5), Estonia (11), Malaysia (1), New Zealand (4), the Russian Federation (14), South Korea (3), Svalbard and Jan Mayen (1), Sweden (17), United States (18: Colorado, Nevada, New Mexico, New York, Texas, Utah)

• Whiterockian of Canada (1: Northwest Territories)

• Arenig of Argentina (1), Canada (1: Ontario), China (4)

Total: 116 collections including 142 occurrences

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