TaxNo: 3767Family Aganididae
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: | Aganididae |
| Qualifier: | fy |
| Author: |
Smith 1903,p.112
|
| Valid: | Prionoceratidae Hyatt,1884,p.328 |
| Lower Boundary: |
P.delph.--low.Platyclym.annulata IIIb/IV, 367.6 million years
|
| Upper Boundary: |
UTX Graham Fm. top, 301 million years
|