Sediliopsis

Sediliopsis is a genus of sea snails, marine gastropod mollusks in the family Pseudomelatomidae.

This genus was long considered as extinct since the late Miocene, until Sedeliopsis riosi was discovered off Brazil, obviously a relict-pocket occurrence.

Species
Species within the genus Sediliopsis include:
 * † Sediliopsis angulata (Martin, 1904)
 * † Sediliopsis aphanitoma (Dall, 1892)
 * † Sediliopsis calvertensis (Martin, 1904)
 * † Sediliopsis chowanensis (J. Garnder, 1948)
 * † Sediliopsis distans (Conrad, 1862)
 * † Sediliopsis gracilis (Conrad, 1830)
 * † Sediliopsis incilifera (Conrad, 1834)
 * † Sediliopsis ondulum (Fargo, 1953)
 * † Sediliopsis patuxentia (Martin, 1904)
 * Sediliopsis riosi Tippett, 1995