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: †Diplacanthiformes

Familia: †Diplacanthidae

Genera: †Culmacanthus – †Diplacanthus – †Gladiobranchus – †Rhadinacanthus – †Tetanopsyrus – †Uraniacanthus

Name

†Diplacanthiformes Berg, 1940

References

• Berg, L.S. 1940. Sistema ryboobraznykh i ryb, nyne živuščikh i iskopaemykh (Russian) [Classification of fishes, both recent and fossil]. Trudy Zoologicheskogo Instituta, Akademiya Nauk SSSR, Leningrad. 5: 1–431. Reference page. 
• Burrow, C.J. & Turner, S. 2010. Reassessment of “Protodus” scoticus from the Early Devonian of Scotland, p. 123-144. In Elliott, D.K., Maisey, J.G., Yu, X., & Miao, D. (eds.): Morphology, Phylogeny and Paleobiogeography of Fossil Fishes. Verlag Dr Friedrich Pfeil, Munich. Reference page. 
• 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.