TaxNo: 6092Irinoceras tuba
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Prionoceratidae
|
| Subfamily: |
Prionoceratinae
|
| Genus: |
Irinoceras
|
| Species: | tuba |
| Qualifier: | ss |
| Author: |
Campbell et al. 1983,p.82
|
| Lower Boundary: |
Fascip./Ammon.--Bollandoc./Bollandit. BZ, 345.3 million years
|
| Upper Boundary: |
Holkerian--Asbian [V3a--V3b] [HLK--ASB], 336.5 million years
|