Order Alepisauriformes Regan 1911 (ray-finned fish)
Parent taxon: Eurypterygii according to P. L. Forey et al. 2003
Sister taxa: Aulopa, Ctenosquamata
Subtaxa: Alepisaurus, Argillichthys, Cheirothrix, Cyranichthys, Dercetoides, Drimys, Enchodontoidei, Evermanella, Hemisaurida, Ichthyotringa, Ichthyotringoidei, Lestidiops, Paralepis, Phylactocephalus, Rharbichthys, Saurida, Synodus, Volcichthys
Ecology: nektonic carnivore