eocene
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Clinker outcrop (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 3
by James St. John
by James St. John
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Buchite clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA)
by James St. John
by James St. John
Trona (Wilkins Peak Member, Green River Formation, Lower Eocene; Blacks Fork Mine, near Granger, Wyoming, USA) 3
by James St. John
by James St. John
"Turritella Agate" (chertified fossiliferous lacustrine limestone) (Laney Member, Green River Formation, Middle Eocene; North Barrel Springs Draw, south of Wamsutter, Wyoming, USA) 4
by James St. John
by James St. John
Chert nodule (Green River Formation, Eocene; Temple Hill, east of Manti, Utah, USA) 5
by James St. John
by James St. John
Willwood Formation (Lower Eocene; Gooseberry Badlands, Bighorn Basin, Wyoming, USA) 3
by James St. John
by James St. John
Priscacara serrata fossil fish (Green River Formation, Lower Eocene; Fossil Lake Basin, southwestern Wyoming, USA) 2
by James St. John
by James St. John
Clinker outcrop (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 5
by James St. John
by James St. John
Priscacara liops fossil fish (Green River Formation, Lower Eocene; Dayvault Quarry, Lincoln County, Fossil Lake Basin, southwestern Wyoming, USA)
by James St. John
by James St. John
Differentially cemented & eroded sandstone (member C, Uinta Formation, Eocene; Fantasy Canyon, Utah, USA) 41
by James St. John
by James St. John
Colton Formation (Paleocene-Eocene; Salina Canyon, Sevier County, Utah, USA) 9
by James St. John
by James St. John
Guffey Volcanic Center (Thirtynine Mile Volcanic Field, Late Eocene, ~36.1 Ma; Park County, central Colorado, USA) 6
by James St. John
by James St. John
"Turritella Agate" (chertified fossiliferous lacustrine limestone) (Laney Member, Green River Formation, Middle Eocene; southern Wyoming, USA) 2
by James St. John
by James St. John
Stromatolite with sediment fill between columns (Fort Laclede Bed, Laney Member, Green River Formation, Lower Eocene; ancient Lake Gosiute, southwestern Wyoming, USA)
by James St. John
by James St. John
Colton Formation (Paleocene-Eocene; Salina Canyon, Sevier County, Utah, USA) 8
by James St. John
by James St. John
Impact breccia with melt (possibly a suevite) (Eocene, 39 Ma; Haughton Impact Structure, Devon Island, northern Canada) 5
by James St. John
by James St. John
Impact breccia with melt (possibly a suevite) (Eocene, 39 Ma; Haughton Impact Structure, Devon Island, northern Canada) 4
by James St. John
by James St. John
Clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 6
by James St. John
by James St. John
Hyracotherium vasacciense (fossil horse) (Huerfano Formation, Lower Eocene; Huerfano Basin, Colorado, USA) 2
by James St. John
by James St. John
Clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 5
by James St. John
by James St. John
Lacustrine stromatolite (Green River Formation, Eocene; White Hill, near Ephraim, Utah, USA) 2
by James St. John
by James St. John
Sequoia affinis (fossil giant redwood tree trunk) (Florissant Formation, Upper Eocene; Florissant Fossil Beds National Monument, Colorado, USA) 86
by James St. John
by James St. John
Clinker outcrop (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 2
by James St. John
by James St. John
Stromatolite with embedded snails (Fort Laclede Bed, Laney Member, Green River Formation, Lower Eocene; ancient Lake Gosiute, southwestern Wyoming, USA)
by James St. John
by James St. John
Lacustrine stromatolite (Green River Formation, Eocene; White Hill, near Ephraim, Utah, USA) 4
by James St. John
by James St. John
Blowhole in tholeiitic basalt (Yachats Ocean Road State Natural Site, Oregon, USA)
by James St. John
by James St. John
Sequoia affinis (fossil giant redwood tree trunk) (Florissant Formation, Upper Eocene; Florissant Fossil Beds National Monument, Colorado, USA) 63
by James St. John
by James St. John
Differentially cemented & eroded sandstone (member C, Uinta Formation, Eocene; Fantasy Canyon, Utah, USA) 51
by James St. John
by James St. John
Clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 4
by James St. John
by James St. John
Guffey Volcanic Center (Thirtynine Mile Volcanic Field, Late Eocene, ~36.1 Ma; Park County, central Colorado, USA) 5
by James St. John
by James St. John
Odocoileus virginianus (white-tailed deer) (Newark, Ohio, USA) 12
by James St. John
by James St. John
Lacustrine stromatolite (Green River Formation, Eocene; White Hill, near Ephraim, Utah, USA) 1
by James St. John
by James St. John
Pakicetus attocki (fossil whale) (Kuldana Formation, Lower Eocene; Kala Chitta Hills, Punjab, Pakistan) 1
by James St. John
by James St. John
Differentially cemented & eroded sandstone (member C, Uinta Formation, Eocene; Fantasy Canyon, Utah, USA) 50
by James St. John
by James St. John
Diplobunops matthewi fossil mammal (Uinta Formation, Upper Eocene; Uinta Basin, Utah, USA) 1
by James St. John
by James St. John
Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 2
by James St. John
by James St. John
Mioplosus labracoides & Knightia eocaena fossil fish (Green River Formation, Lower Eocene; Fossil Lake Basin, southwestern Wyoming, USA)
by James St. John
by James St. John
Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 8
by James St. John
by James St. John
Metasequoia occidentalis (fossil redwood) (White Lake Formation, Tertiary; near Oliver, British Columbia, Canada) 3
by James St. John
by James St. John
Mioplosus labracoides fossil fish with partially digested fish in its stomach (Green River Formation, Lower Eocene; Fossil Lake Basin, southwestern Wyoming, USA) 2
by James St. John
by James St. John
Baked sedimentary xenoliths in clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 3
by James St. John
by James St. John
Green Mountain Laccolith (Little Sundance Dome) (Sundance, Wyoming, USA) 1
by James St. John
by James St. John
Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 4
by James St. John
by James St. John
Emery (Naxos Emery Deposits, metamorphism in the Eocene & Miocene, 40-50 Ma & 16-20; Naxos Island, Aegean Sea) 1
by James St. John
by James St. John
Trona (Wilkins Peak Member, Green River Formation, Lower Eocene; Blacks Fork Mine, near Granger, Wyoming, USA) 1
by James St. John
by James St. John
241件～300件 (全 2,432件)