gptkb:Glaciations_of_North_America
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gptkb:Wisconsin_glaciation
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gptkb:Cenozoic_glaciation
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Late Cenozoic Ice Age
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gptkb:The_Great_Ice_Age
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Günz, Mindel, Riss, Würm in Europe
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gptkb:The_Ice_Age
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at least four
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gptkb:Glaciations_of_North_America
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gptkb:Kansan_glaciation
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gptkb:Glaciations_of_North_America
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gptkb:Illinoian_glaciation
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gptkb:The_Great_Ice_Age
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at least four in North America
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gptkb:Cenozoic_glaciation
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gptkb:Pleistocene_glaciations
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gptkb:Glaciations_of_North_America
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gptkb:Nebraskan_glaciation
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gptkb:Pleistocene_epoch
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at least four
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gptkb:Cenozoic_glaciation
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Holocene glaciation
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