†family Brachydeiridae Gross 1932 (armour-plated fish)
Placodermi - Phlyctaeniiformes - Brachydeiridae
Parent taxon: Aspinothoracidi according to R. van der Laan 2019
See also Denison 1975, Denison 1978 and Denison 1984
Sister taxa: Braunosteidae, Bulbocanthidae, Dinichthyidae, Gorgonichthys, Hadrosteidae, Heintzichthys, Leiosteidae, Leptosteidae, Titanichthyidae
Subtaxa: Auchenosteus Brachydeirus
Ecology: nektonic carnivore
Distribution: