| A (1 species) |
| Anthodon - Changhsingian, 254-252 Ma |
| B (1 species) |
| Bradysaurus - Capitanian, 265-260 Ma |
| C (0 species) |
| D (0 species) |
| E (1 species) |
| Elginia - Changhsingian, 254-252 Ma |
| F (0 species) |
| G (0 species) |
| H (0 species) |
| I (0 species) |
| J (0 species) |
| K (0 species) |
| L (0 species) |
| M (1 species) |
| Macroleter - Late Permian, 264 Ma |
| N (0 species) |
| O (1 species) |
| Owenetta - 260.5-250 Ma Mid Wuchiapingian - early Induan |
| P (1 species) |
| Pareiasaurus - Wuchiapingian - Changhsingian, 260-252 Ma |
| Q (0 species) |
| R (0 species) |
| S (2 species) |
| Scutosaurus - Lopingian, 254-252 Ma |
| Shihtienfenia - Capitanian, 260 Ma |
| T (1 species) |
| Tokosaurus - Late Permian, 264 Ma |
| U (0 species) |
| V (0 species) |
| W (0 species) |
| X (0 species) |
| Y (0 species) |
| Z (0 species) |