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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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Glaphyritidae
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Subfamily:
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Glaphyritinae
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Genus:
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Syngastrioceras
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Species:
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mirabile |
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Qualifier:
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ss |
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Author:
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Yin 1937,p.355
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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
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