TaxNo: 2617Beyrichoceras hornerae
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Maxigoniatitidae
|
| Genus: |
Beyrichoceras
|
| Species: | hornerae |
| Qualifier: | ss |
| Author: |
Miller 1947,p.21
|
| Lower Boundary: |
UMO Grand Falls Chert--Upper Boone Fm., 334.5 million years
|
| Upper Boundary: |
UMO Upper Boone Fm. top, 333.5 million years
|