TaxNo: 4682Paragastrioceras tokyense
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: |
Paragastrioceratidae
|
| Subfamily: |
Paragastrioceratinae
|
| Genus: |
Paragastrioceras
|
| Species: | tokyense |
| Qualifier: | ss |
| Author: |
Andrianov 1985,p.135
|
| Lower Boundary: |
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|
| Upper Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|