Suborder:
|
Tornoceratina
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Superfamily:
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Dimeroceratoidea
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Family:
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Dimeroceratidae
|
Genus:
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Paratornoceras
|
Species:
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sobolevi* |
Qualifier:
|
ss |
Author:
|
Kullmann 1960,p.514
|
Lower Boundary:
|
UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
|
Upper Boundary:
|
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|