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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Tertiary
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Neogene
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Tortonian (2)
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Ogallala Formation (1)
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Pliocene
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lower Pliocene
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upper Pliocene (3)
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Paleogene
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Chadron Formation (1)
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Eocene
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Chuckanut Formation (3)
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lower Eocene
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middle Eocene
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upper Eocene
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Whitsett Formation (1)
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lower Paleogene (1)
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Oligocene
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Brule Formation (4)
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upper Oligocene (1)
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Paleocene
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Clayton Formation (4)
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Lebo Member (1)
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