TaxNo: 5750Family Petteroceratidae
| Suborder: |
Anarcestina
|
| Superfamily: |
Triainoceratoidea
|
| Family: | Petteroceratidae |
| Qualifier: | fa |
| Author: |
Becker & House 1993,p.115
|
| Lower Boundary: |
mid.--up.varcus Zone [17,00], 389 million years
|
| Upper Boundary: |
AUW Frasnian A--B, 384.6 million years
|