TaxNo: 6294Family Pericycloceratidae
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: | Pericycloceratidae |
| Qualifier: | fy |
| Author: |
Zhao & Zheng 1977,p.243
|
| Valid: |
Metalegoceratinae Plummer & Sc. TAX5582 |
| Lower Boundary: |
Gzhelian--Asselian [C--P], 299 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|