TaxNo: 4272Christioceras sp.
| Suborder: |
Goniatitina
|
| Superfamily: |
Schistoceratoidea
|
| Family: |
Christioceratidae
|
| Genus: |
Christioceras
|
| Species: | sp. |
| Qualifier: | in |
| Author: |
div. authors
|
| Lower Boundary: |
UTX Smithwick Fm. base, 308.9 million years
|
| Upper Boundary: |
UTX Smithwick Fm. top, 308.6 million years
|