LocNo: 6228Oyakejima Fm., basal part
| Country: |
Japan
|
| Province: |
Kitakami Massif
|
| Locality: |
Koyakejima, Ogatsu-cho, Monoo-gun
|
| Layer: | Oyakejima Fm., basal part |
| Lower Boundary: |
Anderssonoceras/Prototoceras base, 260.4 million years
|
| Upper Boundary: |
Araxoc./Konglingites--Sanyangites, 256 million years
|
| Georeference: |