Suborder:
|
Goniatitina
|
Superfamily:
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Neoicoceratoidea
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Family:
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Paragastrioceratidae
|
Subfamily:
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Paragastrioceratinae
|
Genus:
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Paragastrioceras
|
Species:
|
karpinskii |
Qualifier:
|
ss |
Author:
|
Fredericks 1915,p.97
|
Lower Boundary:
|
Aktastinian--Baigendzhinian [AKT--BAI], 282 million years
|
Upper Boundary:
|
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|