Suborder:
|
Tornoceratina
|
Superfamily:
|
Karagandoceratoidea
|
Family:
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Karagandoceratidae
|
Genus:
|
Masonoceras
|
Species:
|
sp. |
Qualifier:
|
in |
Author:
|
div. authors
|
Lower Boundary:
|
AUN Namoi Formation base, 353 million years
|
Upper Boundary:
|
AUN Dangarfield Formation base, 350 million years
|