Sinuopea typicalis (FOSSIL) Butts, 1926 †
Euconia umbilicata (FOSSIL) Dake & Bridge, 1932 † USA, Missouri, Shannon
Sinuopea vera (FOSSIL) Ulrich & al., 1931 † Missouri, Shannon County
Schizopea wanwankouensis (FOSSIL) Yü & E.L. Yochelson,1999 †
Schizopea washburnensis (FOSSIL) Butts, 1926 † USA, Alabama, Jefferson
Sinuopea whittardi (FOSSIL) C.M. Poulsen, 1937 † Greenland, Cape Stosch
Umbospira yochelsoni (FOSSIL) Peel, 1977 † Canada, Nova Scotia, Antigonish