TaxNo: 5924Polaricyclus canadensis
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Pericyclidae
|
| Subfamily: |
Pericyclinae
|
| Genus: |
Polaricyclus
|
| Species: | canadensis |
| Qualifier: | ss |
| Author: |
Work & Nassichuk 2000,p.38
|
| Lower Boundary: |
GBY lower--upper Chadian [CHD], 345.3 million years
|
| Upper Boundary: |
Chadian--Arundian [V1a--V1b] [CHD--ARU], 344.5 million years
|