| A (1 species) |
| Acanthostega - Late Devonian, 365 Ma |
| B (0 species) |
| C (1 species) |
| Crassigyrinus - Visean 345.3-328.3 Ma |
| D (0 species) |
| E (0 species) |
| F (0 species) |
| G (1 species) |
| Greererpeton - Visean 345.3-328.3 Ma |
| H (0 species) |
| I (1 species) |
| Ichthyostega - Late Devonian, 365-360 Ma |
| J (0 species) |
| K (0 species) |
| L (0 species) |
| M (0 species) |
| N (0 species) |
| O (0 species) |
| P (1 species) |
| Pholidogaster - Visean to Serpukhovian 345.3-318.1 Ma |
| Q (0 species) |
| R (0 species) |
| S (2 species) |
| Seymouria - Early Permian, |
| Solenodonsaurus - Westphalian, 313-304 Ma |
| T (0 species) |
| U (0 species) |
| V (0 species) |
| W (0 species) |
| X (0 species) |
| Y (0 species) |
| Z (0 species) |