†family Acanthodidae (spiny fish)
Parent taxon: Acanthodiformes according to R. L. Carroll 1988
Sister taxa: Homalacanthus, Mesacanthus
Subtaxa: Acanthodopsis, Cheiracanthus, Utahacanthus
Ecology: nektonic carnivore
Parent taxon: Acanthodiformes according to R. L. Carroll 1988
Sister taxa: Homalacanthus, Mesacanthus
Subtaxa: Acanthodopsis, Cheiracanthus, Utahacanthus
Ecology: nektonic carnivore