| Caballerodiscus Sey, 1988 |
| Caballerodiscus resupinatus (Caballero, 1940) Sey, 1988 |
| Caballerodiscus tabascensis (Caballero & Sokoloff, 1934) Sey, 1988 |
| Chiorchis Fischoeder, 1901 |
| Chiorchis fabaceus (Diesing, 1838) Fischoeder, 1901 |
| Chiorchis groschafti Coy-Otero, 1989 |
| Cladorchiidae Fischoeder, 1901 |
| Cladorchiinae Fischoeder, 1901 |
| Dadayiinae Fukui, 1929 |
| Dadaytrema Travassos, 1931 |
| Dadaytrema sphaerorchidum Thatcher, 1963 |
| Megalodiscus Chandler, 1923 |
| Megalodiscus americanus Chandler, 1923 |
| Megalodiscus montezumae Travassos, 1934 |
| Megalodiscus temperatus (Stafford, 1905) Harwood, 1932 |
| Nematophila Travassos, 1934 |
| Nematophila grandis (Diesing, 1839) Travassos, 1934 |
| Parachiorchis Caballero, 1943 |
| Parachiorchis parviacetabulatus Caballero, 1943 |
| Pseudocleptodiscus Caballero, 1961 |