TaxNo: 6376Paragastrioceras chengchouense
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: |
Paragastrioceratidae
|
| Subfamily: |
Paragastrioceratinae
|
| Genus: |
Paragastrioceras
|
| Species: | chengchouense |
| Qualifier: | sn |
| Author: |
Xu & Wei 1977,p.566
|
| Lower Boundary: |
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|
| Upper Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|