†superfamily Brachydeiroidea Denison 1978 (armour-plated fish)
Placodermi - Phlyctaeniiformes
Parent taxon: Brachythoraci according to R. H. Denison 1984
See also Denison 1978
Sister taxa: Aspinothoracidi, Buchanosteidae, Buchanosteoidea, Coccosteoidea, Coccosteomorphi, Dinichthyoidea, Doseyosteus, Gemuendenaspidae, Heterosteoidea, Homosteoidea, Homostiidae, Maideria, Pachyosteomorphi, Parabuchanosteidae
Subtaxa: none
Ecology: nektonic carnivore
Distribution: there are no occurrences of Brachydeiroidea in the database