TaxNo: 5263Family Paragastrioceratidae
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: | Paragastrioceratidae |
| Qualifier: | fa |
| Author: |
Ruzhencev 1951,p.138
|
| Lower Boundary: |
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|
| Upper Boundary: |
Permian--Triassic (Induan base), 251 million years
|