TaxNo: 4252Gastrioceras angustum
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Gastrioceratidae
|
| Genus: |
Gastrioceras
|
| Species: | angustum |
| Qualifier: | ss |
| Author: |
Patteisky 1964,p.650
|
| Lower Boundary: |
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|
| Upper Boundary: |
DER Westphal.A1--Westphal.A2 [MEL--VRK], 311.5 million years
|