TaxNo: 3998Genus Zhifangoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Sudeticeratinae
|
| Genus: | Zhifangoceras |
| Qualifier: | ge |
| Author: |
Sheng 1984,p.288
|
| Lower Boundary: |
mid.Tournais.--up.Tournaisian [Tn2--Tn3], 353 million years
|
| Upper Boundary: |
DER Go beta--gamma, granos.base [P1--P2], 328.2 million years
|