Suborder:
|
Goniatitina
|
Superfamily:
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Thalassoceratoidea
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Family:
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Thalassoceratidae
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Subfamily:
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Thalassoceratinae
|
Genus:
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Allothalassoceras
|
Species:
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karpinskyi |
Qualifier:
|
sn |
Author:
|
Tumanskaia 1931,p.56
|
Lower Boundary:
|
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
Upper Boundary:
|
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|