Dactylonax is a genus of petaurid marsupials. In 2026, a species that was thought to be extinct for 6000 years was discovered in New Guinea. Research on this discovery, along with comparisons with other members of genus Dactylopsila, led to a proposal to split Dactylopsila into two genera as follows: Dactylopsila would retain D. megalura, D. tatei, and D. trivirgata. Genus Dactylonax would be resurrected with D. palpator as its type, but sensu stricto. Dactylonax ernstmayri, formerly a subspecies of D. palpator, would be elevated to species level, and the rediscovered Dactylonax kambuayai placed in the resurrected genus. In addition, these two genera are combined in subfamily Dactylopsilinae.