| A (3 species) |
| Anteosaurus - Capitanian, 266-260 Ma |
| Archaeosyodon - Middle Permian |
| Australosyodon - Middle Permian, 265 Ma |
| B (1 species) |
| Brithopus - Middle Permian, Ufimian |
| C (1 species) |
| Criocephalosaurus - Capitanian |
| D (2 species) |
| Deuterosaurus - Capitanian |
| Doliosauriscus - Unavailable |
| E (1 species) |
| Estemmenosuchus - Middle Permian, 267 Ma |
| F (0 species) |
| G (0 species) |
| H (0 species) |
| I (0 species) |
| J (1 species) |
| Jonkeria - Capitanian, 265-260 Ma |
| K (1 species) |
| Keratocephalus - Capitanian |
| L (1 species) |
| Lamiasaurus - Capitanian |
| M (1 species) |
| Moschops - Capitanian, 265-260 Ma |
| N (0 species) |
| O (0 species) |
| P (0 species) |
| Q (0 species) |
| R (2 species) |
| Rhopalodon - Middle Permian |
| Riebeeckosaurus - Capitanian |
| S (6 species) |
| Scullya - Capitanian |
| Sinophoneus - Middle Permian, 270 Ma |
| Stenocybus - Middle Permian, 270 Ma |
| Struthiocephalus - Capitanian, 265-260 Ma |
| Styracocephalus - Capitanian, 265.8-260.4 Ma |
| Syodon - Middle Permian 267-260 Ma |
| T (4 species) |
| Tapinocaninus - Wordian |
| Tapinocephalus - Guadalupian epoch, Capitanian stage |
| Titanophoneus - Middle Permian,265 Ma |
| Titanosuchus - Capitanian, 265 Ma |
| U (1 species) |
| Ulemosaurus - Capitanian, 265-260 Ma |
| V (0 species) |
| W (0 species) |
| X (0 species) |
| Y (0 species) |
| Z (0 species) |