Volutoidea is a taxonomic superfamily of predatory sea snails, marine gastropod mollusks in the clade Neogastropoda. This superfamily includes the chank snails, the dove snails, the volutes, the margin snails and others. Shell description The shell of the snails in this superfamily vary greatly in shape and degree of ornamentation. The shells have an oval aperture, and a noticeable siphonal canal. Families Families within the superfamily Volutoidea are as follows: family Cancellariidae Forbes & Hanley, 1851 family Cystiscidae Stimpson, 1865 -- 15 genera family Granulinidae G. A. Coovert & H. K. Coovert, 1995 family Marginellidae Fleming, 1828 -- 30 genera family Marginellonidae Coan, 1965 family Volutidae Rafinesque, 1815 -- 49 genera Synonyms Paladmetidae Stephenson, 1941 † synonym of Admetinae Troschel, 1865 Plesiocystiscidae G. A. Coovert & H. K. Coovert, 1995: synonym of Plesiocystiscinae G. A. Coovert & H. K. Coovert, 1995 References 1997. Towards a phylogeny of gastropod molluscs: an analysis using morphological characters. Zool. J. Linn. Soc. 119(2): 83-265. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61(1-2): 1-526. Neogastropoda Extant Cretaceous first appearances Taxa named by Constantine Samuel Rafinesque