TaxNo: 5344Genus Eohyattoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Marathonitoidea
|
| Family: |
Hyattoceratidae
|
| Genus: | Eohyattoceras |
| Qualifier: | ge |
| Author: |
Glenister & Furnish 1987,p.988
|
| Lower Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|