Suborder:
|
Tornoceratina
|
Superfamily:
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Karagandoceratoidea
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Family:
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Prodromitidae
|
Genus:
|
Prodromites |
Qualifier:
|
ge |
Author:
|
Smith & Weller 1901,p.257
|
Lower Boundary:
|
UMO Chouteau Lst. base, 354 million years
|
Upper Boundary:
|
UIN Rockford Lst. + low.Nancy Mb. top, 352 million years
|