| Craniidae Menke, 1828 | Craniida | Brachiopoda | Ordovician | Holocene | | | | |
| Trimerellidae Davidson et King, 1872 | Trimerellida | Brachiopoda | Ordovician | Silurian | | | | |
| Rhynchonellida Kuhn, 1949 | Rhynchonellata | Brachiopoda | | | | | | |
| Atrypida Rzhonsnitskaya, 1960 | Rhynchonellata | Brachiopoda | Middle Ordovician | Frasnian | | | | |
| Athyridida Boucot, Johnson et Staton, 1964 | Rhynchonellata | Brachiopoda | Upper Ordovician | Triassic | | | | |
| Spiriferida Waagen, 1883 | Rhynchonellata | Brachiopoda | Upper Ordovician | Triassic | | | | |
| Thecideida Elliott, 1958 | Rhynchonellata | Brachiopoda | | | | | | |
| Terebratulida Waagen, 1883 | Rhynchonellata | Brachiopoda | Lower Devonian | Holocene | | | | |
| Protorthoidea Schuchert et Cooper 1931 | Protorthida | Brachiopoda | Cambrian | Cambrian | | | | |
| Skenidioidea Kozłowski, 1929 | Protorthida | Brachiopoda | Lower Ordovician | Frasnian | | | | |
| Skenidiidae Kozłowski, 1929 | Skenidioidea | Brachiopoda | Lower Ordovician | Frasnian | | | | |
| Orthoidea Woodward, 1852 | Orthidina | Brachiopoda | Billingen Stage | | | | | |
| Orthidae Woodward, 1852 | Orthoidea | Brachiopoda | | | | | | |
| Glyptorthidae Schuchert et Cooper, 1931 | Orthoidea | Brachiopoda | Middle Ordovician | Wenlock | | | | |
| Hesperorthidae Schuchert et Cooper, 1931 | Orthoidea | Brachiopoda | Middle Ordovician | Lower Devonian | | | | |
| Poramborthidae Havliček, 1950 | Orthoidea | Brachiopoda | | | | | | |
| Productorthidae Schuchert et Cooper, 1931 | Orthoidea | Brachiopoda | Middle Ordovician | Upper Ordovician | | | | |
| Kutorginida Kühn, 1949 | Kutorginata | Brachiopoda | | | | | | |
| Obolellida Rowell, 1965 | Obolellata | Brachiopoda | Lower Cambrian (old nomenclature) | Middle Cambrian (old nomenclature) | | | | |
| Chileida Popov et Tikhonov, 1990 | Chileata | Brachiopoda | Lower Cambrian (old nomenclature) | Silurian | | | | |
| Orthotetidina Waagen, 1884 | Orthotetida | Brachiopoda | Upper Ordovician | Permian | | | | |
| Triplesiidina Moore, 1952 | Orthotetida | Brachiopoda | Middle Ordovician | Ludlow | | | | |
| Triplesiidae Schuchert, 1913 | Triplesoidea | Brachiopoda | Lower Ordovician | Ludlow | | | | |
| Atrypidina Moore, 1952 | Atrypida | Brachiopoda | Upper Ordovician | Frasnian | | | | |
| Atrypoidea Gill, 1871 | Atrypidina | Brachiopoda | Upper Ordovician | Frasnian | | | | |
