| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Maxigoniatitidae
|
| Genus: |
Bollandoceras
|
| Species: | librovitchi |
| Qualifier: | ss |
| Author: |
Popov 1965,p.43
|
| Lower Boundary: |
KIT Dzhapryk Fm. A3--A4, 345.3 million years
|
| Upper Boundary: |
KIT Dzhapryk Fm. A4 top, 345 million years
|
Loading