TaxNo: 3449Arcanoceras? altayense
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Eogonioloboceratidae
|
| Genus: |
Arcanoceras?
|
| Species: | altayense |
| Qualifier: | ss |
| Author: |
Liang & Wang 1991,p.86
|
| Lower Boundary: |
Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
|
| Upper Boundary: |
RUS Nm1a1 base, Hypergon.-Ferganoc. GZ, 327.8 million years
|