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Suborder:
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Tornoceratina
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Superfamily:
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Dimeroceratoidea
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Family:
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Dimeroceratidae
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Subfamily:
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Dimeroceratinae
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Genus:
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Paradimeroceras
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Species:
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umbilicatum |
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Qualifier:
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sy |
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Author:
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Sobolev 1914,p.54
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Valid:
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Paradimeroceras beneckei (Wedekind 1908) |
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Lower Boundary:
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UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
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Upper Boundary:
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UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
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