Holopea guelphensis (FOSSIL) Billings, 1865 †
Threavia gulosa (FOSSIL) Lamont, 1946 †
Holopea harpa (FOSSIL) Angelin & Lindström,1880 †
Pachystrophia helicoides (FOSSIL) (E.F.R.K. Koken, 1896 †)
Holopea henningsmoeni (FOSSIL) E.L. Yochelson 1963 †
Raphistomina hortensia (FOSSIL) (Billings, 1865 †)
Holopea hubbardi (FOSSIL) Miller, 1892 †
Holopea inaequistriata (FOSSIL) E.F.R.K. Koken& J. Perner, 1925 †
Pachystrophia inchoans (FOSSIL) (J. Perner, 1903 †)
Holopea incola (FOSSIL) J. Perner, 1903 †
Holopea inflata (FOSSIL) Yü, 1961 †
Holopea informis (FOSSIL) Wilson, 1932 †
Pachystrophia inornatum (FOSSIL) (J.J.F. Whiteaves,1884 †)
Holopea insignis (FOSSIL) Ulrich & Scofield, 1897 †
Holopea iowaensis (FOSSIL) W.H. Webster, 1906 †
Raphistomina lapicida (FOSSIL) (Salter, 1859 †)
Holopea latens (FOSSIL) Öpik, 1953 †
Holopea lavinia (FOSSIL) Billings, 1865 †
Raphistomina lenticulare (FOSSIL) (E. Emmons, 1842 †)
Pachystrophia lescarboti (FOSSIL) (A.H. Clarke, 1908 †)
Anastrophina longior (FOSSIL) (J. Perner, 1907 †)
Holopea macrostomus (FOSSIL) J.W. Hall, 1861 †
Holopea marylandica (FOSSIL) A.H. Clarke & Swartz,1913 †
Holopea media (FOSSIL) Wilson, 1951 †
Holopea mediocris (FOSSIL) Billings, 1866 †
Protospirialis minutissima (FOSSIL) (A.H. Clarke, 1885 †)
Holopea missouriensis (FOSSIL) Bradley, 1930 †
Holopea mobergi (FOSSIL) Troedsson, 1918 †
Raphistomina modesta (FOSSIL) Ulrich & Scofield, 1897 †
Pachystrophia mullockensis (FOSSIL) Longst, 1924 †
Holopea nereis (FOSSIL) Billings, 1865 †
Holopea nicolettensis (FOSSIL) Foerste, 1924 †
Holopea nitidissima (FOSSIL) Lindström, 1884 †
Threavia nuda (FOSSIL) Horný, 1992 †
Holopea obliqua (FOSSIL) J.W. Hall, 1847 †