Suborder:
|
Goniatitina
|
Superfamily:
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Gastrioceratoidea
|
Family:
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Gastrioceratidae
|
Genus:
|
Gastrioceras
|
Species:
|
wongi |
Qualifier:
|
ss |
Author:
|
Grabau 1924,p.494
|
Lower Boundary:
|
CNG Qixu 15--16, 313 million years
|
Upper Boundary:
|
CNG Qixu 16 top, 309.5 million years
|