Aigu Formation
Geology
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pridoli | Estonia | (13829) | |
| Givetian - Late/Upper Devonian | China (Hubei) | (22937) | |
| Tournaisian | Morocco | (66200 66201) | |
| Norian - Rhaetian | China (Sichuan) | (29990 30023 30026) | |
| Late/Upper Albian | Spain | (66129) | |
| Late/Upper Pliocene | Venezuela (Carabobo) | (41540) | |
| Late/Upper Pleistocene | Japan | (81069) |