Suborder:
|
Goniatitina
|
Superfamily:
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Gonioloboceratoidea
|
Family:
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Gonioloboceratidae
|
Genus:
|
Gonioloboceras
|
Species:
|
welleri |
Qualifier:
|
ss |
Author:
|
Smith 1903,p.125
|
Lower Boundary:
|
UTX Graford Fm.--Brad Fm., 305.3 million years
|
Upper Boundary:
|
UTX Graham Fm. top, 301 million years
|