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Suborder:
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Goniatitina
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Superfamily:
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Neoglyphioceratoidea
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Family:
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Neoglyphioceratidae
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Genus:
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Neoglyphioceras
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Species:
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utahensis* |
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Qualifier:
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ss |
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Author:
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Miller et al. 1952,p.154
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Lower Boundary:
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UUT Chainman Shale, upper part, 326.4 million years
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Upper Boundary:
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UUT Chainman Shale top, 324 million years
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