TaxNo: 3444Irinoceras altayense
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Prionoceratidae
|
| Subfamily: |
Prionoceratinae
|
| Genus: |
Irinoceras
|
| Species: | altayense |
| Qualifier: | ss |
| Author: |
Wang 1983,p.520
|
| Lower Boundary: |
DER Go alpha 3--Go alpha 4 [13.00], 332 million years
|
| Upper Boundary: |
RUS Nm1a1 base, Hypergon.-Ferganoc. GZ, 327.8 million years
|