| A (3 species) |
| Anteosaurus - Capitanian, 266-260 Ma |
| Archaeosyodon - Middle Permian |
| Australosyodon - Middle Permian, 265 Ma |
| B (0 species) |
| C (0 species) |
| D (1 species) |
| Doliosauriscus - Unavailable |
| E (0 species) |
| F (0 species) |
| G (0 species) |
| H (0 species) |
| I (0 species) |
| J (0 species) |
| K (0 species) |
| L (0 species) |
| M (0 species) |
| N (0 species) |
| O (0 species) |
| P (0 species) |
| Q (0 species) |
| R (0 species) |
| S (3 species) |
| Sinophoneus - Middle Permian, 270 Ma |
| Stenocybus - Middle Permian, 270 Ma |
| Syodon - Middle Permian 267-260 Ma |
| T (1 species) |
| Titanophoneus - Middle Permian,265 Ma |
| U (0 species) |
| V (0 species) |
| W (0 species) |
| X (0 species) |
| Y (0 species) |
| Z (0 species) |