†suborder Hadronectoroidei Lund and Lund 1984 (lobe-finned fish)
Coelacanthimorpha - Diplocercidiformes
Full reference: R. Lund and W. Lund. 1984. New genera and species of coelacanths from the Bear Gulch limestone (Lower Carboniferous) of Montana (U.S.A.). Geobios 17:237-244
Parent taxon: Diplocercidiformes according to H.-P. Schultze 2004
See also Lund and Lund 1984 and Lund and Lund 1985
Sister taxon: Diplocercidoidei
Subtaxa: Sassenidae
Ecology:
Distribution:
• Triassic of Svalbard and Jan Mayen (5 collections)
• Permian of United States (2: Texas)
Total: 7 collections each including a single occurrence