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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Angola (1)
-
-
North Africa
-
Algeria (1)
-
Egypt (1)
-
Libya (2)
-
Morocco (2)
-
-
Southern Africa
-
South Africa (2)
-
-
-
America (1)
-
Antarctica (1)
-
Asia
-
Arabian Peninsula
-
Oman (1)
-
Saudi Arabia (2)
-
-
Far East
-
Borneo
-
East Malaysia
-
Sarawak Malaysia (1)
-
-
-
Burma (1)
-
China
-
Guangxi China (1)
-
Henan China (1)
-
Jilin China (1)
-
Liaoning China (1)
-
-
Indonesia
-
Java (1)
-
-
Laos (1)
-
Lesser Sunda Islands
-
Timor (1)
-
-
Malaysia
-
East Malaysia
-
Sarawak Malaysia (1)
-
-
-
Taiwan (1)
-
-
Indian Peninsula
-
India (4)
-
-
Middle East
-
Israel (1)
-
-
Siberian Platform (1)
-
Tien Shan (1)
-
-
Atlantic Ocean
-
North Atlantic
-
Gulf of Mexico (3)
-
North Sea
-
Brent Field (1)
-
Ekofisk Field (1)
-
Valhall Field (1)
-
-
Northwest Atlantic (1)
-
-
-
Atlantic Ocean Islands
-
Bermuda (1)
-
-
Australasia
-
Australia
-
Victoria Australia (2)
-
Western Australia
-
Canning Basin (1)
-
Yilgarn (1)
-
-
-
New Zealand (1)
-
-
Bathurst Island (1)
-
Bear River Range (1)
-
Beaver Creek (1)
-
Black Hills (2)
-
Cache Valley (2)
-
Canada
-
Arctic Archipelago (2)
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (1)
-
Nova Scotia
-
Colchester County Nova Scotia (1)
-
-
-
Meguma Terrane (1)
-
Newfoundland and Labrador
-
Newfoundland (1)
-
-
Ontario
-
Bruce County Ontario (1)
-
Hamilton Ontario (1)
-
Manitoulin District Ontario
-
Manitoulin Island (3)
-
-
Ottawa Ontario (1)
-
Simcoe County Ontario
-
Borden Ontario (1)
-
-
Wellington County Ontario
-
Guelph Ontario (2)
-
-
-
Quebec
-
Anticosti Island (2)
-
Charlevoix-Est County Quebec (1)
-
-
-
Nunavut (1)
-
Queen Elizabeth Islands
-
Parry Islands (1)
-
-
Western Canada
-
Alberta
-
Alberta Basin (1)
-
Peace River Arch (1)
-
-
British Columbia (3)
-
Canadian Rocky Mountains (1)
-
Manitoba
-
Winnipeg Manitoba (1)
-
-
Northwest Territories (5)
-
Saskatchewan (1)
-
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Jamaica (1)
-
Puerto Rico (1)
-
-
Lesser Antilles
-
Barbados (1)
-
Netherlands Antilles (1)
-
-
-
Bahamas (1)
-
-
-
Cascadia subduction zone (1)
-
Clear Creek (1)
-
Commonwealth of Independent States
-
Donets Basin (2)
-
Russian Federation
-
Kaliningrad Russian Federation (1)
-
Siberian Platform (1)
-
-
-
Cornwallis Island (1)
-
Eagle Lake (1)
-
East Pacific Ocean Islands
-
Hawaii (1)
-
-
Europe
-
Alps
-
Swiss Alps (1)
-
-
Baltic region
-
Estonia
-
Tallinn Estonia (1)
-
-
Latvia (1)
-
-
Central Europe
-
Czech Republic
-
Bohemia (2)
-
-
Germany
-
North Rhine-Westphalia Germany
-
Sauerland (1)
-
-
-
Switzerland
-
Swiss Alps (1)
-
-
-
Donets Basin (2)
-
Fennoscandian Shield (1)
-
Kaliningrad Russian Federation (1)
-
Pannonian Basin (1)
-
Pyrenees
-
Spanish Pyrenees (1)
-
-
Southern Europe
-
Iberian Peninsula
-
Portugal (1)
-
Spain
-
Spanish Pyrenees (1)
-
-
-
Italy
-
Campania Italy
-
Naples Italy (1)
-
-
-
Yugoslavia (2)
-
-
Western Europe
-
Belgium (2)
-
France
-
Aquitaine Basin (1)
-
Paris Basin (1)
-
Saone-et-Loire France (1)
-
-
Meuse River (1)
-
Netherlands (4)
-
Scandinavia
-
Denmark
-
Bornholm (2)
-
-
Sweden
-
Gotland Sweden (3)
-
-
-
United Kingdom
-
Great Britain
-
England
-
Dorset England (1)
-
Lincolnshire England (1)
-
West Midlands (1)
-
-
Scotland (2)
-
Wales
-
South Wales (1)
-
-
-
Northern Ireland (1)
-
-
Wadden Sea (2)
-
-
-
Franklin Mountains (1)
-
Glass Mountains (1)
-
Grandfather Mountain (1)
-
Green River (1)
-
Gulf of Mexico Basin (1)
-
Highland Rim (1)
-
Hunter Valley (1)
-
Illinois River (1)
-
Lake Nipissing (1)
-
Lewis Creek (1)
-
Malay Archipelago
-
Borneo
-
East Malaysia
-
Sarawak Malaysia (1)
-
-
-
Timor (1)
-
-
Mammoth Cave (12)
-
Marble Canyon (1)
-
Mediterranean Sea
-
East Mediterranean
-
Adriatic Sea (1)
-
-
-
Mexico
-
Baja California (1)
-
Coahuila Mexico (3)
-
Guerrero Mexico (1)
-
Mexico state
-
Federal District Mexico
-
Mexico City Mexico (1)
-
-
-
Tabasco Mexico (1)
-
-
Mill Creek (3)
-
Mohawk Valley (1)
-
New River (4)
-
North America
-
Appalachian Basin (137)
-
Appalachians
-
Allegheny Mountains (2)
-
Appalachian Plateau (31)
-
Blue Ridge Mountains (3)
-
Blue Ridge Province (9)
-
Central Appalachians (67)
-
Cumberland Plateau (1)
-
Great Appalachian Valley (2)
-
Northern Appalachians (2)
-
Piedmont
-
Inner Piedmont (1)
-
-
Southern Appalachians (27)
-
Valley and Ridge Province (26)
-
-
Basin and Range Province (1)
-
Canadian Shield
-
Grenville Province (5)
-
-
Eastern Overthrust Belt (3)
-
Great Lakes
-
Lake Erie (14)
-
Lake Michigan (18)
-
Lake Ontario (2)
-
-
Great Lakes region (31)
-
Great Plains
-
Northern Great Plains (1)
-
Southern Great Plains (1)
-
-
Grenville Front (7)
-
Gulf Coastal Plain (12)
-
Michigan Basin (28)
-
Mississippi River basin (1)
-
Niagara Escarpment (2)
-
Niagara River (1)
-
North American Craton (2)
-
Rocky Mountains
-
Canadian Rocky Mountains (1)
-
U. S. Rocky Mountains
-
Sangre de Cristo Mountains (1)
-
-
-
Saint Lawrence Lowlands (1)
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
Williston Basin (2)
-
-
North Island (1)
-
Oceania
-
Melanesia (1)
-
Polynesia
-
Hawaii (1)
-
-
-
Ottawa River (1)
-
Owens Valley (1)
-
Pacific Ocean
-
East Pacific (1)
-
North Pacific
-
Northwest Pacific
-
South China Sea
-
Gulf of Thailand (1)
-
-
-
-
South Pacific
-
Southwest Pacific
-
Coral Sea
-
Great Barrier Reef (1)
-
-
-
-
West Pacific
-
Northwest Pacific
-
South China Sea
-
Gulf of Thailand (1)
-
-
-
Southwest Pacific
-
Coral Sea
-
Great Barrier Reef (1)
-
-
-
-
-
Permian Basin (3)
-
Pine Mountain Fault (2)
-
Plum Island (1)
-
Pulaski Fault (5)
-
Redwood Creek (1)
-
Rome Trough (12)
-
Saltville Fault (3)
-
San Andreas Fault (1)
-
San Juan Basin (2)
-
San Juan River (1)
-
Santa Maria Basin (1)
-
Seymour Island (1)
-
Sierra Nevada (2)
-
Solomon Islands (1)
-
South America
-
Argentina
-
Neuquen Argentina (1)
-
-
Brazil (3)
-
Peru (1)
-
Venezuela (2)
-
-
Sydney Basin (1)
-
United States
-
Alabama
-
Etowah County Alabama (1)
-
Franklin County Alabama (1)
-
Madison County Alabama (1)
-
-
Alaska
-
Aleutian Islands (1)
-
-
Allegheny Front (4)
-
Allegheny Mountains (2)
-
Allegheny Plateau (8)
-
Anadarko Basin (1)
-
Arizona
-
Cochise County Arizona
-
Bisbee Arizona (1)
-
-
Gila County Arizona (1)
-
Mogollon Rim (1)
-
Pima County Arizona
-
Tucson Arizona (2)
-
-
-
Arkansas
-
Searcy County Arkansas (2)
-
Washington County Arkansas (1)
-
-
Arkoma Basin (2)
-
Atlantic Coastal Plain (4)
-
Bighorn Basin (1)
-
Black Warrior Basin (1)
-
Blue Ridge Mountains (3)
-
California
-
Hayward Fault (1)
-
Los Angeles County California
-
Los Angeles California (1)
-
Pasadena California (1)
-
-
Monterey County California (1)
-
Orange County California (1)
-
San Diego County California
-
San Diego California (1)
-
-
San Francisco Bay region (1)
-
San Francisco County California
-
San Francisco California (1)
-
-
San Mateo County California (1)
-
Santa Clara County California
-
San Jose California (1)
-
-
-
Carolina Terrane (1)
-
Catskill Delta (10)
-
Cincinnati Arch (59)
-
Colorado
-
Mineral County Colorado
-
Creede mining district (1)
-
-
Park County Colorado
-
Alma mining district (1)
-
-
Piceance Basin (1)
-
-
Colorado Plateau (2)
-
Delaware (2)
-
Denver Basin (2)
-
District of Columbia (1)
-
Dunkard Basin (9)
-
Eastern U.S. (42)
-
Florida
-
Florida Keys
-
Key Largo (1)
-
-
Monroe County Florida
-
Key Largo (1)
-
-
-
Forest City Basin (2)
-
Georgia
-
Baker County Georgia (1)
-
Catoosa County Georgia (1)
-
Dade County Georgia (1)
-
Walker County Georgia (1)
-
-
Hawaii (1)
-
Idaho
-
Bonneville County Idaho (1)
-
-
Illinois
-
Alexander County Illinois (7)
-
Boone County Illinois (1)
-
Bureau County Illinois (1)
-
Calhoun County Illinois (1)
-
Champaign County Illinois (4)
-
Christian County Illinois (2)
-
Clinton County Illinois (1)
-
Coles County Illinois (3)
-
Cook County Illinois
-
Chicago Illinois (11)
-
-
Crawford County Illinois (2)
-
De Witt County Illinois (1)
-
DeKalb County Illinois (6)
-
DuPage County Illinois (5)
-
Effingham County Illinois (3)
-
Fayette County Illinois (4)
-
Ford County Illinois (1)
-
Franklin County Illinois (6)
-
Fulton County Illinois (1)
-
Gallatin County Illinois (4)
-
Grundy County Illinois (9)
-
Hamilton County Illinois (4)
-
Hancock County Illinois (3)
-
Hardin County Illinois (11)
-
Henderson County Illinois (1)
-
Iroquois County Illinois (1)
-
Jackson County Illinois (8)
-
Jasper County Illinois (1)
-
Jefferson County Illinois (6)
-
Jersey County Illinois (2)
-
Johnson County Illinois (8)
-
Kane County Illinois (2)
-
Kankakee County Illinois (12)
-
Kendall County Illinois (1)
-
Knox County Illinois (1)
-
La Salle County Illinois (7)
-
Lake County Illinois (1)
-
Lawrence County Illinois (4)
-
Lee County Illinois (4)
-
Livingston County Illinois (3)
-
Macon County Illinois (10)
-
Macoupin County Illinois (1)
-
Marion County Illinois (1)
-
Mason County Illinois (1)
-
Massac County Illinois (5)
-
Mazon Creek (15)
-
McHenry County Illinois (3)
-
McLean County Illinois (3)
-
Monroe County Illinois (1)
-
Montgomery County Illinois (1)
-
Pike County Illinois (1)
-
Pope County Illinois (5)
-
Pulaski County Illinois (2)
-
Putnam County Illinois (2)
-
Randolph County Illinois (2)
-
Richland County Illinois (5)
-
Saint Clair County Illinois (2)
-
Saline County Illinois (12)
-
Sangamon County Illinois
-
Springfield Illinois (1)
-
-
Tazewell County Illinois (1)
-
Union County Illinois (5)
-
Vermilion County Illinois (6)
-
Wabash County Illinois (8)
-
Wayne County Illinois (1)
-
White County Illinois (5)
-
Will County Illinois (14)
-
Williamson County Illinois (6)
-
Winnebago County Illinois (1)
-
Woodford County Illinois (1)
-
-
Illinois Basin (155)
-
Indiana
-
Allen County Indiana (5)
-
Bartholomew County Indiana (4)
-
Blackford County Indiana (1)
-
Boone County Indiana (1)
-
Brown County Indiana (3)
-
Carroll County Indiana (2)
-
Cass County Indiana (2)
-
Clark County Indiana (1)
-
Clay County Indiana (6)
-
Crawford County Indiana (4)
-
Daviess County Indiana (3)
-
Dearborn County Indiana (10)
-
Decatur County Indiana (2)
-
Delaware County Indiana (1)
-
Fountain County Indiana (1)
-
Franklin County Indiana (10)
-
Gibson County Indiana (5)
-
Grant County Indiana (2)
-
Greene County Indiana (3)
-
Hamilton County Indiana (2)
-
Harrison County Indiana (3)
-
Howard County Indiana (1)
-
Huntington County Indiana (3)
-
Jackson County Indiana (4)
-
Jasper County Indiana (2)
-
Jefferson County Indiana (5)
-
Jennings County Indiana (4)
-
Kentland impact structure (5)
-
Knox County Indiana (2)
-
Lagrange County Indiana (1)
-
Lake County Indiana (1)
-
Lawrence County Indiana (12)
-
Madison County Indiana (1)
-
Marion County Indiana (5)
-
Martin County Indiana (2)
-
Miami County Indiana (1)
-
Monroe County Indiana (20)
-
Montgomery County Indiana (9)
-
Morgan County Indiana (1)
-
Newton County Indiana (6)
-
Orange County Indiana (5)
-
Owen County Indiana (3)
-
Parke County Indiana (7)
-
Perry County Indiana (1)
-
Pike County Indiana (4)
-
Porter County Indiana (1)
-
Posey County Indiana (10)
-
Pulaski County Indiana (1)
-
Putnam County Indiana (1)
-
Randolph County Indiana (1)
-
Rush County Indiana (1)
-
Scott County Indiana (1)
-
Shelby County Indiana (4)
-
Spencer County Indiana (2)
-
Steuben County Indiana (1)
-
Sullivan County Indiana (7)
-
Switzerland County Indiana (3)
-
Tippecanoe County Indiana (2)
-
Union County Indiana (1)
-
Vanderburgh County Indiana (8)
-
Vermillion County Indiana (1)
-
Vigo County Indiana (7)
-
Wabash County Indiana (4)
-
Warren County Indiana (3)
-
Warrick County Indiana (6)
-
Wayne County Indiana (1)
-
White County Indiana (1)
-
-
Iowa
-
Adair County Iowa (1)
-
Boone County Iowa (1)
-
Clinton County Iowa (1)
-
Des Moines County Iowa (3)
-
Floyd County Iowa (1)
-
Jackson County Iowa (2)
-
Jones County Iowa (1)
-
Keokuk County Iowa (2)
-
Lee County Iowa (2)
-
Mahaska County Iowa (1)
-
Van Buren County Iowa (1)
-
-
Kansas
-
Bourbon County Kansas (1)
-
Douglas County Kansas (1)
-
Johnson County Kansas (1)
-
Linn County Kansas (1)
-
Miami County Kansas (1)
-
Wabaunsee County Kansas (1)
-
Wilson County Kansas (1)
-
-
Kentucky
-
Allen County Kentucky (2)
-
Anderson County Kentucky (2)
-
Ballard County Kentucky (2)
-
Bath County Kentucky (10)
-
Boone County Kentucky (9)
-
Boyd County Kentucky (2)
-
Boyle County Kentucky (3)
-
Bracken County Kentucky (7)
-
Breathitt County Kentucky (1)
-
Breckinridge County Kentucky (1)
-
Bullitt County Kentucky (2)
-
Caldwell County Kentucky (4)
-
Campbell County Kentucky (9)
-
Carlisle County Kentucky (3)
-
Carter County Kentucky (7)
-
Christian County Kentucky (3)
-
Clark County Kentucky (1)
-
Clinton County Kentucky (9)
-
Crittenden County Kentucky (4)
-
Cumberland County Kentucky (7)
-
Eastern Kentucky coal field (6)
-
Edmonson County Kentucky (12)
-
Elliott County Kentucky (6)
-
Estill County Kentucky (4)
-
Fayette County Kentucky (5)
-
Fleming County Kentucky
-
Maxey Flats (1)
-
-
Floyd County Kentucky (5)
-
Franklin County Kentucky (5)
-
Fulton County Kentucky (1)
-
Gallatin County Kentucky (1)
-
Garrard County Kentucky (1)
-
Grant County Kentucky (1)
-
Grayson County Kentucky (1)
-
Green County Kentucky (2)
-
Greenup County Kentucky (2)
-
Hancock County Kentucky (1)
-
Hardin County Kentucky (6)
-
Harlan County Kentucky (1)
-
Hart County Kentucky (1)
-
Henderson County Kentucky (4)
-
Hickman County Kentucky (1)
-
Hopkins County Kentucky (4)
-
Jackson County Kentucky (1)
-
Jefferson County Kentucky
-
Louisville Kentucky (3)
-
-
Jessamine County Kentucky (1)
-
Johnson County Kentucky (2)
-
Kenton County Kentucky (4)
-
Kentucky River (3)
-
Kentucky River valley (1)
-
Larue County Kentucky (1)
-
Laurel County Kentucky (1)
-
Lawrence County Kentucky (1)
-
Leslie County Kentucky (3)
-
Letcher County Kentucky (2)
-
Lewis County Kentucky (6)
-
Lincoln County Kentucky (2)
-
Livingston County Kentucky (2)
-
Logan County Kentucky (1)
-
Madison County Kentucky (3)
-
Magoffin County Kentucky (2)
-
Marion County Kentucky (1)
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Martin County Kentucky (4)
-
Mason County Kentucky (8)
-
McCracken County Kentucky (4)
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McCreary County Kentucky (4)
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McLean County Kentucky (1)
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Meade County Kentucky (5)
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Menifee County Kentucky (6)
-
Monroe County Kentucky (1)
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Montgomery County Kentucky (1)
-
Moorman Syncline (1)
-
Morgan County Kentucky (2)
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Muhlenberg County Kentucky (3)
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Nelson County Kentucky (2)
-
Ohio County Kentucky (3)
-
Oldham County Kentucky (2)
-
Pendleton County Kentucky (2)
-
Perry County Kentucky (5)
-
Pike County Kentucky (5)
-
Powell County Kentucky (5)
-
Pulaski County Kentucky (2)
-
Rockcastle County Kentucky (1)
-
Rough Creek fault zone (11)
-
Rowan County Kentucky (10)
-
Russell County Kentucky (10)
-
Scott County Kentucky (1)
-
Simpson County Kentucky (1)
-
Taylor County Kentucky (2)
-
Trimble County Kentucky (3)
-
Union County Kentucky (6)
-
Warren County Kentucky (4)
-
Wayne County Kentucky (5)
-
Webster County Kentucky (6)
-
Whitley County Kentucky (1)
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Wolfe County Kentucky (3)
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Woodford County Kentucky
-
Versailles Kentucky (2)
-
-
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Louisiana (2)
-
Maryland
-
Allegany County Maryland (1)
-
Anne Arundel County Maryland (2)
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Garrett County Maryland (1)
-
Washington County Maryland (2)
-
-
Massachusetts
-
Middlesex County Massachusetts (1)
-
-
Michigan
-
Michigan Lower Peninsula
-
Alcona County Michigan (1)
-
Alpena County Michigan (1)
-
Berrien County Michigan (5)
-
Branch County Michigan (1)
-
Calhoun County Michigan (1)
-
Cass County Michigan (1)
-
Ingham County Michigan (2)
-
Lansing Michigan (1)
-
Manistee County Michigan (1)
-
Montmorency County Michigan (1)
-
Oakland County Michigan (1)
-
Ottawa County Michigan (1)
-
Washtenaw County Michigan
-
Ann Arbor Michigan (1)
-
-
Wayne County Michigan (1)
-
-
Michigan Upper Peninsula (1)
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Favositidae
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Favosites (1)
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Hydrozoa (4)
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Scyphozoa
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Conulariida (2)
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Echinodermata
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Asterozoa
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Stelleroidea
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Asteroidea (6)
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Ophiuroidea (4)
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Crinozoa
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Blastoidea (16)
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Crinoidea (117)
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Cystoidea (7)
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Paracrinoidea (2)
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Echinozoa
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Cyclocystoidea (4)
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Echinoidea (6)
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Edrioasteroidea (11)
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Holothuroidea (6)
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Ophiocistioidea (1)
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Homalozoa
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Stylophora (2)
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Mollusca
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Bivalvia
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Cyrtodontida (1)
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Nuculanidae (1)
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Pterioida
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Pteriina
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Anthraconaia (1)
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Pectinacea (1)
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Cephalopoda
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Ammonoidea
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Goniatitida
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Goniatitidae
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Goniatites (1)
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Nautiloidea (9)
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Gastropoda
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Archaeogastropoda
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Bellerophontina (1)
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Pteropoda (1)
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Turritellidae (1)
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Hyolithes (1)
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Monoplacophora (2)
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Polyplacophora (6)
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Rostroconchia (5)
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Scaphopoda
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Dentalium (1)
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Tentaculitida (1)
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Porifera
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Demospongea (1)
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Hexactinellida (1)
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Stromatoporoidea (12)
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Protista
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Foraminifera
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Fusulinina
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Fusulinidae (5)
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Radiolaria (2)
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Vermes
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Annelida (14)
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Chaetognatha (1)
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Nematoida (2)
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Polychaeta
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Serpulidae (1)
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Priapulida (1)
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scolecodonts (6)
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Metazoa (1)
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microfossils
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Charophyta (2)
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Chitinozoa (7)
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Conodonta
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Gondolella (1)
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Icriodus (3)
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Idiognathodus (1)
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Neognathodus (4)
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Ozarkodina (1)
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Panderodus (2)
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Polygnathus (3)
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Spathognathodus (2)
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Fusulinina
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Fusulinidae (5)
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problematic microfossils (2)
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scolecodonts (6)
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palynomorphs
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acritarchs (9)
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Chitinozoa (7)
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Dinoflagellata (1)
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megaspores (3)
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miospores
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pollen (4)
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Plantae
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algae
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calcareous algae (1)
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Chlorophyta
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Charophyta (2)
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Chlorophyceae
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Dasycladaceae (1)
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Receptaculitaceae (1)
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Tasmanites (3)
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diatoms (1)
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Epiphyton (2)
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Phaeophyta (1)
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Rhodophyta (2)
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Pteridophyta
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Filicopsida (4)
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Lycopsida
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Lepidodendron (2)
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Sigillaria (1)
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Stigmaria (1)
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Sphenopsida
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Equisetales
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Calamites (1)
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Spermatophyta
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Angiospermae
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Dicotyledoneae
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Dryas (1)
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Gymnospermae
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Coniferales
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Picea (2)
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Cordaitales
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Cordaites (1)
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Cycadales (3)
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Pteridospermae
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Neuropteris (2)
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problematic fossils
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problematic microfossils (2)
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Pterobranchia (1)
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thallophytes (19)
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tracks (6)
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trails (3)
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geochronology methods
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(U-Th)/He (1)
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Ar/Ar (1)
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exposure age (1)
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K/Ar (4)
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Lu/Hf (1)
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optically stimulated luminescence (8)
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paleomagnetism (11)
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racemization (2)
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Rb/Sr (2)
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Sm/Nd (1)
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tephrochronology (2)
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Th/U (2)
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thermoluminescence (2)
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tree rings (1)
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U/Pb (11)
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geologic age
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Cenozoic
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lower Cenozoic (1)
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Quaternary
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Holocene
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lower Holocene (2)
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upper Holocene (10)
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Pleistocene
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Glasford Formation (5)
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Illinoian (8)
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Lake Algonquin (1)
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Lake Chicago (4)
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Lake Maumee (1)
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lower Pleistocene (1)
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Matuyama Chron (1)
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Peoria Loess (2)
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Roxana Silt (2)
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upper Pleistocene
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Sangamonian (2)
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Weichselian
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upper Weichselian
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Younger Dryas (2)
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Wisconsinan
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Lavery Till (2)
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lower Wisconsinan (2)
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upper Wisconsinan (7)
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Woodfordian (4)
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Wedron Formation (4)
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upper Quaternary
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Brunhes Chron (1)
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Tertiary
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Neogene
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Miocene
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middle Miocene (1)
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Pliocene (4)
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Paleogene
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Eocene
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Absaroka Supergroup (1)
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lower Eocene
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Wind River Formation (1)
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middle Eocene
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Claiborne Group (1)
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upper Eocene
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Jackson Group (1)
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Yazoo Clay (1)
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lower Paleogene (1)
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Oligocene
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Frio Formation (1)
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Paleocene
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lower Paleocene
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Danian (1)
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Porters Creek Formation (2)
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upper Cenozoic (2)
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Laurentide ice sheet (9)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Albian (1)
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Bluesky Formation (1)
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Gething Formation (1)
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Upper Cretaceous
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Bearpaw Formation (1)
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Blackhawk Formation (1)
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Campanian (1)
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Ferron Sandstone Member (1)
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Fox Hills Formation (1)
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Fruitland Formation (1)
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Gulfian
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Eagle Ford Formation (3)
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Ripley Formation (1)
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Santonian (1)
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Senonian (1)
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Jurassic
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Middle Jurassic
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Aalenian (1)
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Upper Jurassic
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Bossier Formation (1)
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Haynesville Formation (2)
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Kimmeridge Clay (2)
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Smackover Formation (1)
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Tithonian (1)
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Triassic
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Lower Triassic (1)
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Vaca Muerta Formation (1)
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MIS 2 (1)
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MIS 5 (1)
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MIS 6 (1)
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Paleozoic
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Bedford Shale (8)
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Berea Sandstone (30)
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Cambrian
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Conasauga Group (5)
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Lower Cambrian
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Chilhowee Group (2)
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Rome Formation (9)
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Shady Dolomite (9)
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Middle Cambrian (2)
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Upper Cambrian
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Copper Ridge Dolomite (6)
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Dresbachian (2)
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Eau Claire Formation (11)
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Galesville Sandstone (1)
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Maynardville Limestone (1)
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Mount Simon Sandstone (32)
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Potsdam Sandstone (1)
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Wonewoc Formation (1)
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Carboniferous
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Diamond Peak Formation (1)
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Lower Carboniferous
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Dinantian (10)
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Middle Carboniferous (1)
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Mississippian
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Barnett Shale (2)
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Big Injun Sandstone (1)
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Borden Group (27)
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Harrodsburg Limestone (12)
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Logan Formation (6)
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Lower Mississippian
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Chappel Limestone (1)
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Chouteau Limestone (3)
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Cuyahoga Formation (10)
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Fort Payne Formation (22)
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Kinderhookian (10)
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Osagian
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Burlington Limestone (17)
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Keokuk Limestone (15)
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Pocono Formation (7)
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Tournaisian (6)
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Middle Mississippian
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Visean (10)
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Newman Limestone (12)
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Price Formation (7)
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Ramp Creek Formation (7)
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Sunbury Shale (11)
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Upper Mississippian
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Bangor Limestone (1)
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Chesterian
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Aux Vases Sandstone (6)
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Cypress Sandstone (2)
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Golconda Formation (5)
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Imo Formation (4)
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Renault Formation (7)
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Greenbrier Limestone (12)
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Hartselle Sandstone (2)
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Heath Formation (1)
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Hinton Formation (5)
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Mauch Chunk Formation (5)
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Meramecian
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Saint Louis Limestone (9)
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Sainte Genevieve Limestone (15)
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Salem Limestone (25)
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Warsaw Formation (10)
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Monteagle Limestone (1)
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Parkwood Formation (1)
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Pennington Formation (10)
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Pride Mountain Formation (1)
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Valmeyeran (4)
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Windsor Group (1)
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Namurian (7)
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Pennsylvanian
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Brazil Formation (4)
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Conemaugh Group (26)
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Excello Shale (1)
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Francis Creek Shale (14)
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Freeport Formation (2)
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Herrin Coal Member (12)
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Kittanning Formation (2)
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La Salle Limestone (1)
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Lower Pennsylvanian
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Bashkirian (1)
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Caseyville Formation (6)
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Lee Formation (8)
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Morrowan (6)
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New River Formation (4)
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Pocahontas Formation (6)
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Mansfield Formation (10)
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Mattoon Formation (7)
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Middle Pennsylvanian
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Allegheny Group (33)
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Atokan
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Atoka Formation (1)
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Breathitt Formation (17)
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Carbondale Formation (27)
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Danville Coal Member (2)
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Desmoinesian
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Cabaniss Formation (1)
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Labette Shale (1)
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Dugger Formation (7)
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Kanawha Formation (13)
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Kewanee Group (2)
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Moscovian (5)
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Petersburg Formation (1)
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Spoon Formation (2)
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Staunton Formation (9)
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Tradewater Formation (2)
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