Suborder:
|
Goniatitina
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Superfamily:
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Popanoceratoidea
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Family:
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Popanoceratidae
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Genus:
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Propopanoceras
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Species:
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lahuseni+ |
Qualifier:
|
ss |
Author:
|
Karpinskii 1889,p.67
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Lower Boundary:
|
Tastubian--Sterlitamakian [TAS--STE], 290 million years
|
Upper Boundary:
|
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|