| A (0 species) | 
| B (1 species) | 
| Brontornis - Miocene | 
| C (0 species) | 
| D (0 species) | 
| 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 (2 species) | 
| Paraphysornis - Late Oligocene - Early Miocene | 
| Physornis - Mid-Late Oligocene (Deseadan)~29.2-26.3 Ma | 
| Q (0 species) | 
| R (0 species) | 
| S (0 species) | 
| T (0 species) | 
| U (0 species) | 
| V (0 species) | 
| W (0 species) | 
| X (0 species) | 
| Y (0 species) | 
| Z (0 species) |