TaxNo: 5857Subfamily Paraperrinitinae
| Suborder: |
Goniatitina
|
| Superfamily: |
Shumarditoidea
|
| Family: |
Perrinitidae
|
| Subfamily: | Paraperrinitinae |
| Qualifier: | fy |
| Author: |
Tharalson 1984,p.822
|
| Valid: |
Perrinitidae Miller & Furnish [TAX5229] |
| Lower Boundary: |
Gzhelian--Asselian [C--P], 299 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|