TaxNo: 5402Genus Metaschistoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Schistoceratoidea
|
| Family: |
Schistoceratidae
|
| Genus: | Metaschistoceras |
| Qualifier: | gy |
| Author: |
Plummer & Scott 1937,p.255
|
| Valid: | Schistoceras Hyatt 1884,p.336 |
| Lower Boundary: |
UTX Graford Shale base, 305.6 million years
|
| Upper Boundary: |
UTX Graham Fm. top, 301 million years
|