List of fossiliferous stratigraphic units in Bulgaria
# List of fossiliferous stratigraphic units in Bulgaria

| Group or Formation | Period |
| - | - |
| Babino Formation | Triassic |
| Bilka Formation | Jurassic |
| Cerkoviste Formation | Jurassic |
| Djula Formation | Jurassic |
| Kajlâka Formation | Cretaceous |
| Karavelyovo Formation | Jurassic |
| Lovech Urgonian Group/Balgarene Formation | Cretaceous |
| Lovech Urgonian Group/Emen Formation | Cretaceous |
| Lovech Urgonian Group/Smochan Formation | Cretaceous |
| Milanovo Formation | Triassic |
| Ozirovo Formation | Jurassic |
| Polaten Formation | Jurassic |
| Radomir Formation | Triassic |
| Sanadinovo Formation | Cretaceous |
| Slivnitsa Formation | Cretaceous, Jurassic |
| Sokolovskaya Series Formation | Jurassic |
