Suborder:
|
Goniatitina
|
Superfamily:
|
Dimorphoceratoidea
|
Family:
|
Eogonioloboceratidae
|
Genus:
|
Eogonioloboceras
|
Species:
|
guangxiense |
Qualifier:
|
ss |
Author:
|
Ruan 1981,p.215
|
Lower Boundary:
|
CNG Qixu 15 base, 315.4 million years
|
Upper Boundary:
|
CNG Qixu 15--16, 313 million years
|