Suborder:
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Goniatitina
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Superfamily:
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Gonioloboceratoidea
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Family:
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Gonioloboceratidae
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Genus:
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Gonioloboceratoides
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Species:
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curvatus+ |
Qualifier:
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ss |
Author:
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Nassichuk 1975,p.75
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Lower Boundary:
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Langsettian--Duckmantian, Westphal.A--B, 311.3 million years
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Upper Boundary:
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U Atokan--Desmoinesian [ATO--DES], 308.6 million years
|