TaxNo: 441Polaricyclus polaris+
| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Pericyclidae
|
| Subfamily: |
Pericyclinae
|
| Genus: |
Polaricyclus
|
| Species: | polaris+ |
| Qualifier: | ss |
| Author: |
Gordon 1957,p.33
|
| Lower Boundary: |
UAK Lisburne group base, 349 million years
|
| Upper Boundary: |
UAK Lisburne group top, 340 million years
|