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Reptilia
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Sauropterygia
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Invertebrata
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Insecta
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Brachiopoda
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Cephalopoda
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Neogloboquadrina
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Radiolaria (18)
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Plantae
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upper Quaternary
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Stone Age
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Tertiary
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Maikop Series (3)
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Neogene
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Miocene
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Antelope Shale (3)
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Barstow Formation (5)
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Columbia River Basalt Group (5)
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Grande Ronde Basalt (2)
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lower Miocene
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middle Miocene
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Luisian (1)
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Mohnian (1)
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Temblor Formation (1)
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Tiva Canyon Member (2)
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Topopah Spring Member (3)
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upper Miocene
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Messinian (1)
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Santa Margarita Formation (1)
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Wanapum Basalt (1)
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Ogallala Formation (3)
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Pliocene
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upper Pliocene (1)
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Ringold Formation (1)
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Paleogene
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Chadron Formation (1)
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Eocene
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Bridger Formation (3)
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Lake Gosiute (1)
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lower Eocene
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Willwood Formation (1)
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Ypresian (1)
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middle Eocene
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Laney Shale Member (1)
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Tallahatta Formation (1)
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upper Eocene
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Priabonian (1)
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Twiggs Clay (1)
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Wilkins Peak Member (1)
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Oligocene
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Brule Formation (1)
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Frio Formation (1)
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lower Oligocene (3)
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upper Oligocene (3)
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Paleocene
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lower Paleocene
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Danian (4)
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K-T boundary (2)
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Paleocene-Eocene Thermal Maximum (1)
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White River Group (1)
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Vaqueros Formation (1)
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upper Cenozoic
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Pico Formation (1)
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Dalradian (1)
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Mesozoic
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