| A (0 species) |
| B (0 species) |
| C (1 species) |
| Criocephalosaurus - Capitanian |
| D (0 species) |
| E (0 species) |
| F (0 species) |
| G (0 species) |
| H (0 species) |
| I (0 species) |
| J (0 species) |
| K (1 species) |
| Keratocephalus - Capitanian |
| L (0 species) |
| M (1 species) |
| Moschops - Capitanian, 265-260 Ma |
| N (0 species) |
| O (0 species) |
| P (0 species) |
| Q (0 species) |
| R (1 species) |
| Riebeeckosaurus - Capitanian |
| S (2 species) |
| Struthiocephalus - Capitanian, 265-260 Ma |
| Styracocephalus - Capitanian, 265.8-260.4 Ma |
| T (2 species) |
| Tapinocaninus - Wordian |
| Tapinocephalus - Guadalupian epoch, Capitanian stage |
| U (1 species) |
| Ulemosaurus - Capitanian, 265-260 Ma |
| V (0 species) |
| W (0 species) |
| X (0 species) |
| Y (0 species) |
| Z (0 species) |