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Suborder:
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Goniatitina
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Superfamily:
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Cycloloboidea
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Family:
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Cyclolobidae
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Subfamily:
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Kufengoceratinae
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Genus:
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Paratongluceras |
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Qualifier:
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ge |
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Author:
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Zhao & Zheng 1977,p.247
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Lower Boundary:
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Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
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Upper Boundary:
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Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
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