| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Maxigoniatitidae
|
| Genus: |
Bollandoceras
|
| Species: | stylense |
| Qualifier: | ss |
| Author: |
Kuzina 1991,p.40
|
| Lower Boundary: |
DER Pe delta, nasutus Z. base [09.25], 334.5 million years
|
| Upper Boundary: |
DER Go alpha 2--Go alpha 3 [11.60], 332.3 million years
|
Loading