TaxNo: 4528Properrinites dmitrievi
| Suborder: |
Goniatitina
|
| Superfamily: |
Shumarditoidea
|
| Family: |
Perrinitidae
|
| Genus: |
Properrinites
|
| Species: | dmitrievi |
| Qualifier: | ss |
| Author: |
Ruzhencev 1978,p.50
|
| Lower Boundary: |
Gzhelian--Asselian [C--P], 299 million years
|
| Upper Boundary: |
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|