Suborder:
|
Goniatitina
|
Superfamily:
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Thalassoceratoidea
|
Family:
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Thalassoceratidae
|
Subfamily:
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Thalassoceratinae
|
Genus:
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Allothalassoceras
|
Species:
|
bogoslovskayae |
Qualifier:
|
ss |
Author:
|
Leonova 1989,p.115
|
Lower Boundary:
|
TAP Kochusu Fm. base, 270.6 million years
|
Upper Boundary:
|
Kochusu Fm.,lower, lower--middel part, 270 million years
|