Suborder:
|
Goniatitina
|
Superfamily:
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Popanoceratoidea
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Family:
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Popanoceratidae
|
Genus:
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Popanoceras
|
Species:
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congregale* |
Qualifier:
|
ss |
Author:
|
Ruzhencev 1940,pl.2
|
Lower Boundary:
|
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
Upper Boundary:
|
Aktastinian--Baigendzhinian [AKT--BAI], 282 million years
|