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Coccolithophoraceae (3)
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nannofossils (2)
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Rhodophyta (1)
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Pteridophyta
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Filicopsida
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Dicroidium (1)
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Lycopsida
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Lycopodium (1)
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Spermatophyta
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Angiospermae
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Monocotyledoneae
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Gramineae (1)
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Gymnospermae
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Bennettitales (1)
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Coniferales (1)
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Cycadales (1)
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Ginkgoales (1)
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-
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problematic fossils
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problematic microfossils (1)
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Pterobranchia (1)
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thallophytes (1)
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tracks (5)
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geochronology methods
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(U-Th)/He (6)
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Ar/Ar (24)
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exposure age (5)
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fission-track dating (3)
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infrared stimulated luminescence (1)
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K/Ar (1)
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Lu/Hf (2)
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Nd/Nd (1)
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optical dating (1)
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optical mineralogy (1)
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optically stimulated luminescence (7)
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paleomagnetism (25)
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Pb/Pb (1)
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radiation damage (1)
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Rb/Sr (1)
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sclerochronology (1)
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Sm/Nd (2)
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Sr/Sr (1)
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tephrochronology (6)
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Th/U (1)
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thermochronology (6)
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thermoluminescence (1)
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tree rings (4)
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U/Pb (42)
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geologic age
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Cenozoic
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middle Cenozoic (1)
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Quaternary
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Cordilleran ice sheet (5)
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Holocene
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lower Holocene (4)
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middle Holocene (1)
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Neoglacial
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Little Ice Age (1)
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upper Holocene
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Little Ice Age (1)
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Roman period (2)
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-
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Pleistocene
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Lake Agassiz (2)
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Lake Lahontan (1)
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Lake Missoula (2)
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lower Pleistocene
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Olduvai Subchron (1)
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Matuyama Chron (1)
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middle Pleistocene (1)
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Old Crow Tephra (1)
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Peoria Loess (2)
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Roxana Silt (1)
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upper Pleistocene
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Rancholabrean (1)
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Weichselian
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upper Weichselian
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Bolling (1)
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Younger Dryas (3)
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Wisconsinan
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upper Wisconsinan (4)
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upper Quaternary
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Scandinavian ice sheet (1)
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Tertiary
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Arikaree Group (1)
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Florissant Lake Beds (1)
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Lincoln Creek Formation (1)
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lower Tertiary (1)
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middle Tertiary
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Deseadan (1)
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Neogene
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Hemphillian (1)
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Miocene
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Ash Hollow Formation (2)
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Clarendonian (1)
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Columbia River Basalt Group (3)
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lower Miocene (2)
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middle Miocene
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San Onofre Breccia (1)
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Puerto Madryn Formation (1)
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upper Miocene
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Tortonian (1)
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Valentine Formation (1)
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Pliocene
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lower Pliocene (3)
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upper Pliocene (1)
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Ringold Formation (1)
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Paleogene
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Duchesne River Formation (2)
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Eocene
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Bridger Formation (3)
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Bridgerian (2)
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Green River Formation (2)
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lower Eocene
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Wasatchian (1)
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Willwood Formation (2)
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Wind River Formation (1)
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Ypresian (1)
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middle Eocene (4)
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upper Eocene
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Chadronian (1)
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Jackson Group (1)
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Poway Conglomerate (1)
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Uinta Formation (1)
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-
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Hanna Formation (5)
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lower Paleogene (1)
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Oligocene
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lower Oligocene
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Rupelian (1)
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Tremembe Formation (1)
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upper Oligocene (3)
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Paleocene
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lower Paleocene
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Danian (1)
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K-T boundary (7)
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Torrejonian (2)
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Nacimiento Formation (1)
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Tullock Member (1)
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upper Paleocene
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Tiffanian (2)
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Paleocene-Eocene Thermal Maximum (1)
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White River Group (2)
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-
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upper Cenozoic (4)
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Coal Measures (2)
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Lake Bonneville (1)
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Laurentide ice sheet (11)
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Mesozoic
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Condrey Mountain Schist (2)
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Cretaceous
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Blairmore Group (1)
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Colorado Group (1)
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Comanchean
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Glen Rose Formation (1)
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Washita Group (1)
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Lower Cretaceous
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Albian
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upper Albian (2)
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Aptian (1)
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Barremian (2)
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Berriasian (1)
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Blackleaf Formation (1)
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Bluesky Formation (3)
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Cadomin Formation (3)
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Cedar Mountain Formation (1)
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Gething Formation (6)
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Glen Rose Formation (1)
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Hauterivian (1)
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Mannville Group (5)
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McMurray Formation (2)
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Mesa Rica Sandstone (1)
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Moosebar Formation (1)
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Spirit River Formation (1)
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Mancos Shale (1)
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Middle Cretaceous (2)
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Potomac Group (1)
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Upper Cretaceous
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Belle Fourche Shale (1)
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Campanian
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Dinosaur Park Formation (2)
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lower Campanian (1)
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upper Campanian (1)
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Cardium Formation (4)
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Cenomanian (3)
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Coniacian (1)
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Frontier Formation (1)
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Gulfian
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Austin Group (1)
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Hell Creek Formation (6)
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Horseshoe Canyon Formation (3)
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K-T boundary (7)
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Lewis Shale (1)
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Maestrichtian
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lower Maestrichtian (1)
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Montana Group (1)
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Pierre Shale (2)
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Prince Creek Formation (3)
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Saint Mary River Formation (1)
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Senonian (8)
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Straight Cliffs Formation (1)
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Tuolumne Intrusive Suite (2)
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Turonian (3)
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Wahweap Formation (1)
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Viking Formation (1)
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Franciscan Complex (1)
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Jurassic
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Fernie Formation (6)
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Lower Jurassic
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Hettangian (4)
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lower Liassic (3)
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middle Liassic (2)
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Nordegg Member (4)
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Pliensbachian (4)
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Sinemurian (1)
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Toarcian (4)
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Triassic-Jurassic boundary (1)
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upper Liassic (2)
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Middle Jurassic
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Aalenian (1)
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Bajocian (1)
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Bathonian (2)
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Callovian (1)
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Oxford Clay (1)
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Posidonia Shale (1)
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Upper Jurassic
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Fulmar Formation (1)
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Galice Formation (1)
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Josephine Ophiolite (2)
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Kimmeridge Clay (1)
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Kimmeridgian (2)
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Morrison Formation (2)
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Oxfordian (3)
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Tithonian (2)
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lower Mesozoic (1)
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Moenave Formation (1)
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Triassic
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Charlie Lake Formation (15)
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Fremouw Formation (1)
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Liard Formation (5)
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Lower Triassic
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Griesbachian (1)
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Permian-Triassic boundary (1)
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Smithian (1)
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Spathian (1)
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Middle Triassic
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Anisian (6)
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Doig Formation (28)
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Ladinian (1)
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Montney Formation (27)
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Sherwood Sandstone (1)
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Upper Triassic
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Baldonnel Formation (7)
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Carnian (4)
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Chinle Formation (1)
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Mercia Mudstone (1)
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Norian (4)
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Pardonet Formation (8)
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Petrified Forest Member (1)
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Redonda Formation (1)
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Rhaetian (4)
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Shinarump Member (1)
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Triassic-Jurassic boundary (1)
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upper Mesozoic (2)
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MIS 6 (1)
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Paleozoic
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Cambrian
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Conasauga Group (1)
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Kanmantoo Group (1)
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Lower Cambrian
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Zabriskie Quartzite (1)
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Middle Cambrian
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Bright Angel Shale (1)
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Burgess Shale (1)
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Mount Read Volcanics (1)
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Upper Cambrian
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Furongian (3)
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Goldenville Formation (1)
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Carboniferous
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Benxi Formation (1)
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Lower Carboniferous
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Dinantian (1)
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Middle Carboniferous (1)
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Mississippian
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Barnett Shale (1)
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Lower Mississippian
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Cuyahoga Formation (1)
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Kinderhookian (1)
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Tournaisian (2)
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Middle Mississippian
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Visean (1)
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Redwall Limestone (1)
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Upper Mississippian
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Mauch Chunk Formation (1)
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Pennsylvanian
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Conemaugh Group (1)
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Middle Pennsylvanian
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Allegheny Group (1)
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Atokan
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Atoka Formation (1)
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-
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Pottsville Group (1)
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Upper Pennsylvanian
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Glenshaw Formation (1)
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Upper Carboniferous
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Millstone Grit (2)
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Westphalian (2)
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Devonian
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Beaverhill Lake Group (2)
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Genesee Group (1)
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Keg River Formation (2)
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Lower Devonian
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Emsian (2)
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Pragian (1)
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Middle Devonian
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Eifelian (3)
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Elk Point Group (2)
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Givetian (3)
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Onondaga Limestone (1)
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Prairie Evaporite (3)
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Tully Limestone (1)
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Old Red Sandstone (2)
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Slave Point Formation (1)
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Upper Devonian
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Duperow Formation (1)
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Famennian (1)
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Frasnian (7)
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Grosmont Formation (1)
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Hampshire Formation (1)
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-
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Dunkard Group (1)
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Earn Group (1)
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Knox Group (2)
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lower Paleozoic
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Ashe Formation (1)
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middle Paleozoic (1)
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