Suborder:
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Goniatitina
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Superfamily:
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Gastrioceratoidea
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Family:
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Gastrioceratidae
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Genus:
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Cancelloceras
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Subgenus:
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Monitoceras
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Species:
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karpinskii |
Qualifier:
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ss |
Author:
|
Yanishevskii 1900,p.319
|
Lower Boundary:
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RUS Nm2b3--Nm2c1,Bilinguites-Cancelloc.G, 314.8 million years
|
Upper Boundary:
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RUS Nm2c1--Nm2c2 (V.vern.--B.superbil.), 314.2 million years
|