Angyomphalus penelenticulata (FOSSIL) Rollins, 1975 †
Angyomphalus radianodosus (FOSSIL) E.K. Yoo, 1994 †
Angyomphalus radians (FOSSIL) (de Koninck, 1843 †)
Angyomphalus regularis (FOSSIL) W.J. Gordon& E.L. Yochelson, 1987 †
Angyomphalus subplana (FOSSIL) Gromczakiewicz-Lomnicka,1972 †
Arizonella allecta (FOSSIL) Stoyanow, 1948 †
Baylea burtasorum (FOSSIL) (Golowkinsky, 1868 †)
Baylea chimbulatiensis (FOSSIL) Mazaev, 2015 †
Baylea coheni (FOSSIL) E.L. Yochelson, 1962 †
Baylea concentrica (FOSSIL) (B. Phillips, 1836 †)
Baylea cordulae (FOSSIL) Heidelberger & al.,2009 †
Baylea delawarensis (FOSSIL) (Girty, 1909 †)
Baylea derongensis (FOSSIL) Pan & Yu, 1993 †
Baylea durga (FOSSIL) (L. Waagen, 1880 †)
Baylea foraminata (FOSSIL) Mazaev, 2015 †
Baylea giffordi (FOSSIL) A.H. Worthen, 1884 †
Baylea heterocarinata (FOSSIL) Pan, 1985 †
Baylea huecoensis (FOSSIL) Batten, 1989 †
Baylea inclinata (FOSSIL) Weller, 1929 †
Baylea kirillowensis (FOSSIL) de Koninck 1881 †
Baylea knighti (FOSSIL) Weller, 1929 †
Baylea kuesi (FOSSIL) Batten, 1995 †
Baylea minuta (FOSSIL) Weller, 1916 †
Baylea nemdaensis (FOSSIL) Mazaev, 2015 †
Baylea parva (FOSSIL) (A. Thomas, 1940 †)
Baylea perthensis (FOSSIL) Dickins, 1963 †
Baylea queerlingensis (FOSSIL) Wang, 1982 †
Baylea rigida (FOSSIL) Mazaev, 2015 †
Baylea sinuatus (FOSSIL) (Weller, 1916 †)
Baylea spirolirata (FOSSIL) Batten, 1966 †
Baylea subconstricta (FOSSIL) (F.B. Meek& A.H. Worthen, 1860 †)
Baylea subpenea (FOSSIL) Netchaev, 1894 †
Baylea supercrenata (FOSSIL) Weller, 1929 †
Baylea tabulata (FOSSIL) (B. Phillips, 1836 †)
Baylea teicherti (FOSSIL) Cook & al., 2003 †
Baylea trifibra (FOSSIL) Rollins, 1975 †