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Suborder:
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Tornoceratina
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Superfamily:
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Tornoceratoidea
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Family:
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Tornoceratidae
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Subfamily:
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Aulatornoceratinae
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Genus:
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Truyolsoceras
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Species:
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bicostatum |
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Qualifier:
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ss |
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Author:
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Hall 1843,p.246
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Lower Boundary:
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UNY Lower--Upper Canadaway (25--26), 370.8 million years
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Upper Boundary:
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UNY Upper Canadaway top (26--27), 370 million years
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