Kuskokwimiidae † Family Misurinellidae Family Orbitestellidae Family Tjaernoeiidae Family Xylodisculidae 捻螺總科(英语:Acteonoidea) Acteonoidea 捻螺科 Acteonidae
Kuskokwimiidae † Family Misurinellidae Family Orbitestellidae Family Tjaernoeiidae Family Xylodisculidae Superfamily Acteonoidea Family Acteonidae † Family