TaxNo: 5513Aristoceras sp.nov.
| Suborder: |
Goniatitina
|
| Superfamily: |
Thalassoceratoidea
|
| Family: |
Thalassoceratidae
|
| Subfamily: |
Thalassoceratinae
|
| Genus: |
Aristoceras
|
| Species: | sp.nov. |
| Qualifier: | of |
| Author: |
Boardman et al. 1994,pl.4
|
| Lower Boundary: |
UOK Coffeyville Fm. base, 306.2 million years
|
| Upper Boundary: |
UTX middle--upper Gaptank Fm., 305.9 million years
|