TaxNo: 5591Family Parashumarditidae
| Suborder: |
Goniatitina
|
| Superfamily: |
Shumarditoidea
|
| Family: | Parashumarditidae |
| Qualifier: | fa |
| Author: |
Boardman et al. 1994,p.55
|
| Lower Boundary: |
U Atokan--Desmoinesian [ATO--DES], 308.6 million years
|
| Upper Boundary: |
Gzhelian--Asselian [C--P], 299 million years
|