Family Costellariidae MacDonald 1860 (ribbed mitre)
Synonyms: Vexillidae Thiele 1929, Vexillinae Thiele 1929
Parent taxon: Muricoidea according to P. Bouchet et al. 2005
Sister taxa: Babyloniidae, Coralliophilidae, Cystiscidae, Fulgerca, Harpidae, Marginellidae, Mitracea, Mitridae, Muricidae, Pholidotomidae, Pleioptygmatidae, Purpurellidae, Rachiglossa, Strepsiduridae, Taurasinae, Tudiclidae, Turbinellidae, Volutidae, Volutomitridae
Subtaxa: Austromitra, Conomitra, Mitridomus, Thala, Uromitra, Vexillum
Ecology: epifaunal carnivore