†family Tchunacanthidae Karatajute-Talimaa and Smith 2003 (spiny fish)
Parent taxon: Acanthodii according to R. van der Laan 2019
Sister taxa: Acanthodi, Acanthodida, Acanthodiformes, Antarctonchus, Archaeacanthus, Byssacanthoides, Campylodus, Climatiida, Climatiiformes, Diplacanthi, Diplacanthiformes, Eupleurogmus, Gemuendolepis, Haplacanthus, Homacanthus, Ischnacanthida, Ischnacanthiformes, Latviacanthus, Lupopsyroides, Lupopsyrus, Machaeracanthidae, Monopleurodus, Neoasiacanthus, Nodacosta, Nodonchus, Onchidae, Paucicanthus, Pinnacanthus, Promesacanthus, Ptychodictyon, Seretolepis, Striacanthus, Yealepis
Subtaxa: Lenacanthus Tchunacanthus
Type: Tchunacanthus
Ecology: nektonic carnivore
Distribution: there are no occurrences of Tchunacanthidae in the database