TaxNo: 5391Genus Tschungkuoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Schistoceratoidea
|
| Family: |
Schistoceratidae
|
| Genus: | Tschungkuoceras |
| Qualifier: | gy |
| Author: |
Gerth 1950,p.264
|
| Valid: | Branneroceras Plummer & Scott 1937,p.218 |
| Lower Boundary: |
U Halian--Bloydian, Brentwood base, 313 million years
|
| Upper Boundary: |
UAR Dye Shale--Kessler lmst., 311.3 million years
|