Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: †Acanthodii
Ordo: †Climatiiformes
Subordo: †Diplacanthoidei
Familia: †Diplacanthidae

Genera: †Diplacanthus – †Milesacanthus – †Rhadinacanthus

Name

†Diplacanthidae Woodward, 1891

References

• Burrow, C., den Blaauwen, J., Newman, M. & Davidson, R. 2016. The diplacanthid fishes (Acanthodii, Diplacanthiformes, Diplacanthidae) from the Middle Devonian of Scotland. Palaeontologia Electronica, 19(1): Article number 19.1.10A. PDF Reference page. 
• Woodward, A.S. 1891. Catalogue of the fossil fishes in the British Museum (Natural History), Part II. British Museum (Natural History), London, 567 pp. Reference page.