†subfamily Kotlassiinae Romer 1934 (tetrapod)
Osteichthyes - Seymouriamorpha - Kotlassidae
Parent taxon: Kotlassiidae according to V. V. Bulanov 2020
See also Bulanov 2003
Sister taxon: Leptorophinae
Ecology:
Distribution:
• Permian of the Russian Federation (24 collections)
Total: 24 collections including 27 occurrences