TaxNo: 3419Aristoceras caddoense
| Suborder: |
Goniatitina
|
| Superfamily: |
Thalassoceratoidea
|
| Family: |
Thalassoceratidae
|
| Subfamily: |
Thalassoceratinae
|
| Genus: |
Aristoceras
|
| Species: | caddoense |
| Qualifier: | ss |
| Author: |
Plummer & Scott 1937,p.355
|
| Lower Boundary: |
UTX Graford Fm.--Brad Fm., 305.3 million years
|
| Upper Boundary: |
UTX Graham Fm. top, 301 million years
|