Suborder:
|
Tornoceratina
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Superfamily:
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Karagandoceratoidea
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Family:
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Prodromitidae
|
Genus:
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Prodromites
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Species:
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gorbyi+ |
Qualifier:
|
ss |
Author:
|
Miller 1891,p.90
|
Lower Boundary:
|
UMO Chouteau Lst. base, 354 million years
|
Upper Boundary:
|
UIN Rockford Lst. + low.Nancy Mb. top, 352 million years
|