Sediliopsis ondulum is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.Don I. Tippett, Taxonomic notes on the western Atlantic Turridae (Gastropoda: Conoidea); the Nautilus v. 109 (1995-1996)
Distribution Fossils of this species were found in Pliocene strata of Florida, USA.
References
Fargo, William G. The Pliocene Turridae of Saint Petersburg, Florida. 1953; Monographs of the Academy of Natural Sciences of Philadelphia 18:365–409, pls. 16–24