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all geography including DSDP/ODP Sites and Legs
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Africa
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Congo Democratic Republic
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Shaba Congo Democratic Republic (1)
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Cnidaria
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Anthozoa (2)
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Echinodermata
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Crinozoa
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Crinoidea (1)
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Mollusca
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Bivalvia
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Heterodonta
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Veneroida
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Veneridae
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Mercenaria (1)
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Cephalopoda
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Ammonoidea (1)
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Nautiloidea
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Nautilus (1)
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Gastropoda (2)
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Porifera
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Hexactinellida (1)
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Protista
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Foraminifera
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Rotaliina
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Globigerinacea (1)
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Rotaliacea
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Nummulitidae
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Nummulites (1)
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Radiolaria (4)
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Silicoflagellata (2)
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Vermes
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Annelida (1)
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Polychaeta (1)
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Metazoa (1)
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microfossils
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Conodonta (7)
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problematic microfossils (1)
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palynomorphs
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acritarchs (2)
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Dinoflagellata (2)
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miospores (1)
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Plantae
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algae
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Chlorophyta
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Tasmanites (1)
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Coccolithophoraceae (1)
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diatoms (7)
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nannofossils (6)
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Pteridophyta
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Sphenopsida
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Sphenophyllum (1)
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Spermatophyta
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Gymnospermae
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Glossopteridales
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Glossopteris (1)
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problematic fossils
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problematic microfossils (1)
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prokaryotes (2)
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Pterobranchia (1)
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thallophytes (8)
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geochronology methods
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Ar/Ar (17)
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exposure age (1)
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K/Ar (3)
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Nd/Nd (1)
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optical mineralogy (1)
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paleomagnetism (14)
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Pb/Pb (5)
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radiation damage (1)
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Rb/Sr (5)
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Re/Os (25)
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Sm/Nd (3)
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Sr/Sr (1)
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Th/U (3)
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U/Pb (25)
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U/Th/Pb (1)
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geologic age
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Cenozoic
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Bronze Age (1)
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Quaternary
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Holocene
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middle Holocene (1)
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upper Holocene (2)
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Pleistocene
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Champlain Sea (2)
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Glasford Formation (1)
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upper Pleistocene
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Lisan Formation (1)
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Weichselian
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upper Weichselian
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Younger Dryas (1)
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Wisconsinan (1)
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Wurm (1)
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Tertiary
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lower Tertiary (1)
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Neogene
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Miocene
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Crater Flat Tuff (2)
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lower Miocene
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Aquitanian (2)
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middle Miocene (2)
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Oakville Sandstone (1)
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Temblor Formation (1)
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Pliocene
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upper Pliocene (1)
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Paleogene
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Eocene
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Green River Formation (1)
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lower Eocene
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Cuisian (1)
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Sparnacian (1)
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Ypresian
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London Clay (1)
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upper Eocene
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Jackson Group (3)
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Shubuta Member (1)
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Twiggs Clay (1)
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Yazoo Clay (1)
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Hanna Formation (1)
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Oligocene
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Creede Formation (1)
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Fontainebleau Sandstone (1)
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lower Oligocene (1)
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upper Oligocene (1)
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Paleocene
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lower Paleocene
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Danian (3)
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upper Paleocene (1)
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Paleocene-Eocene Thermal Maximum (1)
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Wasatch Formation (1)
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Shahejie Formation (2)
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upper Tertiary (1)
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Coal Measures (1)
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Dalradian (2)
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Mesozoic
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Cretaceous
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Comanchean
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Buda Limestone (1)
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Lower Cretaceous
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Albian
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upper Albian (1)
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Aptian (1)
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Barremian (1)
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Berriasian (1)
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Cupido Formation (1)
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Hauterivian (1)
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Valanginian (1)
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Lower Greensand (2)
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Upper Cretaceous
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Buda Limestone (1)
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Cenomanian
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lower Cenomanian (1)
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Fox Hills Formation (1)
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Gulfian
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Eagle Ford Formation (3)
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Holz Shale (1)
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Horseshoe Canyon Formation (1)
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Ladd Formation (1)
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Maestrichtian (2)
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Niobrara Formation (2)
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Pierre Shale (2)
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Rosario Formation (1)
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Senonian (1)
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Smoky Hill Chalk Member (1)
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Turonian
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upper Turonian (1)
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Williams Fork Formation (1)
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Jurassic
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Bazhenov Formation (1)
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Lower Jurassic
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lower Liassic (1)
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Middle Jurassic
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Bajocian
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Brent Group (1)
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Oxford Clay (2)
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Upper Jurassic
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Kimmeridge Clay (1)
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Kimmeridgian (1)
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Oxfordian (3)
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Portlandian (1)
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Tithonian (1)
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Triassic
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Lower Triassic
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Griesbachian (1)
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Permian-Triassic boundary (7)
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Middle Triassic (3)
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Montney Formation (1)
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Upper Triassic (2)
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upper Mesozoic
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Yixian Formation (2)
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Yanshanian (1)
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Moldanubian (3)
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Paleozoic
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Cambrian
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Acadian (1)
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Lower Cambrian (8)
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Middle Cambrian
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Burgess Shale (2)
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Metaline Limestone (1)
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Mount Read Volcanics (2)
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Upper Cambrian (2)
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Carboniferous
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Lower Carboniferous
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Dinantian (1)
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Mississippian
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Lower Mississippian
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Tournaisian
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upper Tournaisian (1)
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Middle Mississippian
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Visean
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upper Visean (1)
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Upper Mississippian
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Serpukhovian (1)
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Namurian (2)
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Pennsylvanian
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Freeport Formation (2)
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Joggins Formation (1)
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Kittanning Formation (1)
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Lower Pennsylvanian
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New River Formation (1)
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Pocahontas Formation (1)
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Middle Pennsylvanian
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Allegheny Group (2)
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Kanawha Formation (1)
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Monongahela Group (1)
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Pittsburgh Coal (1)
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Upper Pennsylvanian
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Gzhelian (1)
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Upper Carboniferous
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Westphalian (2)
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Chattanooga Shale (1)
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Devonian
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Genesee Group (1)
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Lower Devonian
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Dittonian (1)
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Lochkovian (1)
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Middle Devonian
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Givetian (3)
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Hamilton Group (1)
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Marcellus Shale (2)
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Old Red Sandstone (1)
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Popovich Formation (2)
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Slave Point Formation (1)
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Upper Devonian
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Famennian
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upper Famennian (1)
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Frasnian (6)
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Palliser Formation (1)
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Waterways Formation (1)
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Earn Group (1)
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Exshaw Formation (1)
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lower Paleozoic (7)
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New Albany Shale (2)
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Ordovician
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Lower Ordovician
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Beekmantown Group (1)
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Saint George Group (1)
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Meguma Group (1)
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Middle Ordovician
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Llanvirnian (1)
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Platteville Formation (1)
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Winnipeg Formation (2)
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Trenton Group (1)
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Upper Ordovician
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Ashgillian (1)
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Caradocian
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Borrowdale Volcanic Group (1)
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Hirnantian (2)
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Lorraine Group (1)
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Trentonian (1)
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Wufeng Formation (3)
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Utica Shale (1)
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Permian
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Castile Formation (1)
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Guadalupian
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Capitanian (1)
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Longtan Formation (1)
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Lower Permian
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Wolfcampian (2)
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Lyons Sandstone (1)
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Maokou Formation (1)
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Upper Permian
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Lopingian (1)
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Permian-Triassic boundary (7)
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Zechstein (1)
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Silurian
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Lower Silurian
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Wenlock (1)
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Middle Silurian
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Roberts Mountains Formation (2)
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Niagaran (1)
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Sangerville Formation (1)
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Upper Silurian
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Ludlow (2)
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Waterville Formation (1)
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upper Paleozoic (3)
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Phanerozoic (5)
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Precambrian
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Archean
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Blake River Group (1)
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Mesoarchean (2)
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Neoarchean (11)
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Paleoarchean (2)
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Swaziland Supergroup (1)
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Timiskaming Group (1)
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Yellowknife Group (1)
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Central Rand Group (5)
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Fortescue Group (2)
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Lewisian Complex (1)
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Pongola Supergroup (1)
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Transvaal Supergroup (3)
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upper Precambrian
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Proterozoic
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Bambui Group (1)
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Banxi Group (1)
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Great Oxidation Event (7)
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Huronian
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Onaping Formation (1)
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Malmani Subgroup (1)
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McNamara Group (1)
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Mesoproterozoic
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Belt Supergroup (2)
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Gawler Range Volcanics (1)
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Laxfordian (1)
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Newland Limestone (2)
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Negaunee Iron Formation (1)
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Neoproterozoic
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Cryogenian (2)
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Dengying Formation (3)
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Doushantuo Formation (1)
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Ediacaran (14)
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Marinoan (3)
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Nantuo Formation (1)
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Riphean
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upper Riphean (1)
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Sturtian (2)
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Vendian (4)
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Paleoproterozoic
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Birimian (3)
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Orosirian (1)
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Urquhart Shale (2)
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Roan Supergroup (1)
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Sinian
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