†subfamily Leptorophinae Ivachnenko 1987 (tetrapod)
Osteichthyes - Seymouriamorpha - Kotlassidae
Parent taxon: Kotlassiidae according to V. V. Bulanov 2003
Sister taxon: Kotlassiinae
Subtaxa: Biarmica Leptoropha
Ecology: planktonic suspension feeder
Distribution:
• Permian of the Russian Federation (8 collections)
Total: 8 collections including 9 occurrences