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Aquitanian (1)
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middle Miocene
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Grund Formation (1)
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Serravallian (1)
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upper Miocene (3)
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Ogallala Formation (2)
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Pliocene
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lower Pliocene (1)
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upper Pliocene
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Piacenzian (1)
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Rexroad Formation (1)
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Yorktown Formation (1)
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upper Neogene (1)
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Paleogene
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Claron Formation (1)
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Eocene
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Clarno Formation (1)
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Green River Formation (1)
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Lake Gosiute (1)
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Lake Uinta (1)
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lower Eocene
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Wasatchian (3)
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Willwood Formation (2)
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Ypresian (1)
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middle Eocene
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Lisbon Formation (1)
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Lutetian (1)
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Uintan (1)
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upper Eocene
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La Meseta Formation (1)
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Moodys Branch Formation (1)
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Oligocene
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lower Oligocene (1)
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Paleocene
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lower Paleocene
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Danian (1)
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K-T boundary (4)
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upper Paleocene
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Tiffanian (1)
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Paleocene-Eocene Thermal Maximum (2)
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Renova Formation (1)
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upper Cenozoic
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Tamiami Formation (1)
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Mesozoic
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Cretaceous
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Colorado Group (1)
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Graneros Shale (1)
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Lower Cretaceous
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Albian (2)
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Barremian (1)
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Hauterivian (1)
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McMurray Formation (1)
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Middle Cretaceous (3)
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Santana Formation (1)
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Upper Cretaceous
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Bagh Beds (1)
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Bearpaw Formation (1)
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Belly River Formation (1)
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Blackhawk Formation (1)
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Campanian
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Dinosaur Park Formation (3)
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upper Campanian (4)
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Carlile Shale (1)
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Castlegate Sandstone (1)
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Cenomanian (4)
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Coniacian (1)
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Greenhorn Limestone (1)
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Gulfian
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Eagle Ford Formation (1)
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Hell Creek Formation (3)
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Horseshoe Canyon Formation (3)
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Judith River Formation (1)
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K-T boundary (4)
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Lance Formation (2)
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Maestrichtian
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lower Maestrichtian (1)
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upper Maestrichtian (2)
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Navesink Formation (1)
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Niobrara Formation (2)
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Oldman Formation (3)
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Pierre Shale (3)
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Prince Creek Formation (1)
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Saint Mary River Formation (1)
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Santonian (1)
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Senonian (6)
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Smoky Hill Chalk Member (2)
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Turonian (4)
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Two Medicine Formation (2)
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Glen Canyon Group (1)
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Jurassic
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Carmel Formation (1)
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Lower Jurassic
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Hettangian (2)
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lower Liassic (1)
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middle Liassic (1)
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Pliensbachian (3)
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Sinemurian (1)
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Toarcian
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lower Toarcian (3)
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Triassic-Jurassic boundary (2)
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upper Liassic (1)
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Middle Jurassic
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Bajocian (1)
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Bathonian (3)
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Callovian (1)
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Posidonia Shale (1)
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Solnhofen Limestone (1)
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Upper Jurassic
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Bowser Lake Group (1)
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Kimmeridgian (3)
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Morrison Formation (1)
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Tithonian (1)
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Navajo Sandstone (3)
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Triassic
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Lower Triassic
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Griesbachian (1)
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Induan (3)
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Olenekian (2)
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Permian-Triassic boundary (11)
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Smithian (1)
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Spathian (2)
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Thaynes Formation (1)
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Werfenian (1)
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Middle Triassic (1)
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Moenkopi Formation (2)
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Upper Triassic
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Carnian (2)
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Norian (1)
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Rhaetian (1)
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Triassic-Jurassic boundary (2)
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Vaca Muerta Formation (1)
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MIS 5 (1)
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Paleozoic
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Cambrian
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Lower Cambrian
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Atdabanian (1)
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Poleta Formation (1)
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Tommotian (2)
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Middle Cambrian
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Burgess Shale (1)
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Upper Cambrian (1)
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Carboniferous
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Lower Carboniferous
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Asbian (1)
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Mississippian
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Borden Group (1)
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Lower Mississippian
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Kinderhookian
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Banff Formation (1)
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Osagian (1)
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Upper Mississippian
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Chesterian (1)
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Meramecian
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Salem Limestone (1)
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Serpukhovian (1)
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Pennsylvanian
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Middle Pennsylvanian
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Desmoinesian (3)
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Kewanee Group (1)
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Moscovian (1)
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Upper Pennsylvanian
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Cisco Group (1)
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Gzhelian (1)
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Kasimovian (1)
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Virgilian
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Lecompton Limestone (1)
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Oread Limestone (1)
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Upper Carboniferous
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Westphalian (1)
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Devonian
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Lower Devonian
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Emsian (1)
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Lochkovian (1)
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Manlius Formation (1)
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Middle Devonian
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Dundee Limestone (1)
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Eifelian (1)
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Givetian (1)
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Hamilton Group (1)
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Ludlowville Formation (1)
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Prairie Evaporite (1)
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Winnipegosis Formation (1)
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Miette Complex (1)
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Upper Devonian
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Famennian (1)
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Frasnian
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upper Frasnian (1)
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Kellwasser event (2)
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Ordovician
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Lower Ordovician
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Tremadocian (2)
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Middle Ordovician
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Darriwilian (2)
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Saint Peter Sandstone (1)
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Schenectady Formation (1)
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Trenton Group (1)
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Upper Ordovician
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Cincinnatian
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Richmondian (2)
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Fairview Formation (2)
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Katian (6)
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Wufeng Formation (1)
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Permian
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Guadalupian (1)
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Hughes Creek Shale (1)
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Lower Permian
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Cisuralian
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Asselian (1)
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Leonardian (2)
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Wolfcampian (2)
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Rotliegendes (1)
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Upper Permian
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Changxing Formation (1)
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Lopingian
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Changhsingian (1)
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Permian-Triassic boundary (11)
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Read Bay Formation (2)
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Silurian
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Lower Silurian
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Llandovery
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Aeronian (1)
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Telychian (1)
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Upper Silurian
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Cayugan
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Tonoloway Limestone (1)
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Ludlow (1)
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Pridoli (2)
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Salina Group (1)
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upper Paleozoic
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Shanxi Formation (1)
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Weber Sandstone (1)
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Phanerozoic (7)
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Precambrian
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Archean (1)
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Changcheng System (1)
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Chuar Group (1)
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Flinton Group (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic (1)
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Neoproterozoic
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Cryogenian (2)
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Doushantuo Formation (1)
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Ediacaran (4)
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Otavi Group (1)
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Paleoproterozoic (1)
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Sinian
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Doushantuo Formation (1)
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igneous rocks
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igneous rocks
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kimberlite (1)
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plutonic rocks
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diabase (1)
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granites
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leucogranite (1)
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granodiorites (1)
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pegmatite (1)
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volcanic rocks
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basalts
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columnar basalt (1)
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flood basalts (1)
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glasses
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volcanic glass (2)
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pyroclastics
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ignimbrite (1)
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pumice (1)
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scoria (1)
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rhyolites (2)
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volcanic ash (4)
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metamorphic rocks
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metamorphic rocks
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impactites
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impact breccia
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suevite (1)
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mylonites
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pseudotachylite (1)
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phyllites (1)
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quartzites (2)
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schists (1)
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slates (2)
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turbidite (3)
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-
meteorites
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meteorites
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iron meteorites (1)
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micrometeorites (2)
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stony meteorites
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chondrites
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carbonaceous chondrites
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CM chondrites
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Murchison Meteorite (1)
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ordinary chondrites
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L chondrites (1)
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minerals
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alloys (1)
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arsenides
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