†order Lysopteri Cope 1880 (ray-finned fish)
Parent taxon: Actinopterygia according to E. D. Cope 1887
Sister taxa: Anaglyphus, Angatubichthys, Bethesdaichthys, Blourugia, Docopteri, Frederichthys, Kompasia, Lanarkichthys, Limnomis, Melanecta, Merospondyli, Mesichthyes, Moythomasia, Neopterygii, Phthinobranchii, Plectospondyli, Pseudohaplolepis, Tarrasiidae, Westlepis, Woodichthys
Subtaxa: none
Ecology:
Distribution: there are no occurrences of Lysopteri in the database