| Specimen state | |
|---|---|
| Common name | Bivalue,Pterotrigania |
| Scientific name | Pterotrigania(Ptirotrigonia) higoensis(Tamura and Tasiro) |
| Order | |
| Family | |
| Country | Japan |
| Prefecture, State | Kumamoto |
| City | Uki |
| Group | Mifune G. |
| Formation | Lower F. |
| Era | Mesozoic |
| Period | Cretaceous |
| Epoch | Late |