TaxNo: 3932Perrinites progressus
| Suborder: |
Goniatitina
|
| Superfamily: |
Shumarditoidea
|
| Family: |
Perrinitidae
|
| Genus: |
Perrinites
|
| Species: | progressus |
| Qualifier: | ss |
| Author: |
Leonova 1983,p.51
|
| Lower Boundary: |
TAP Kochusu Fm.,lower--upper subformat., 269.3 million years
|
| Upper Boundary: |
TAP Kochusu Fm.--Shindyi Fm., 268 million years
|