TaxNo: 6093Bollandoceras mackellari
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Maxigoniatitidae
|
| Genus: |
Bollandoceras
|
| Species: | mackellari |
| Qualifier: | ss |
| Author: |
Campbell et al. 1983,p.89
|
| Lower Boundary: |
low.Holkerian--up.Holkerian [V2b--V3a], 339.5 million years
|
| Upper Boundary: |
Asbian--Brigantian [P1a--P1b] [ASB--BRI], 332 million years
|