Suborder:
|
Goniatitina
|
Superfamily:
|
Gastrioceratoidea
|
Family:
|
Gastrioceratidae
|
Genus:
|
Gastrioceras
|
Species:
|
weristerense |
Qualifier:
|
ss |
Author:
|
Demanet 1943,p.132
|
Lower Boundary:
|
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|
Upper Boundary:
|
DER Westphal.A1--Westphal.A2 [MEL--VRK], 311.5 million years
|