Archaeotrigon Simpson, 1927 † (original description)
Coloboceras Crickmay, 1927 † accepted as Tetrahoplitoides Casey, 1954 † (original description)
Euthlastus Simpson, 1927 † (original description)
Herpetairus Simpson, 1927 † (original description)
Kepolestes Simpson, 1927 † (original description)
Laolestes Simpson, 1927 † (original description)
Malthacolestes Simpson, 1927 † (original description)
Melanodon Simpson, 1927 † (original description)
Miccylotyrans Simpson, 1927 † (original description)
Pelicopsis Simpson, 1927 † accepted as Paurodon Marsh, 1887 † (original description)
Tanaodon Simpson, 1927 † (original description)