Suborder:
|
Tornoceratina
|
Superfamily:
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Dimeroceratoidea
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Family:
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Cheiloceratidae
|
Genus:
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Torleyoceras
|
Species:
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balapanense* |
Qualifier:
|
ss |
Author:
|
Bogoslovsky 1971,p.121
|
Lower Boundary:
|
UD2A--UD2B:(verneuili Zone base) [07,75], 374 million years
|
Upper Boundary:
|
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|