Geology of Wyoming Map References


Aguirre, E., and Pasini, G., 1985, The Pliocene Pleistocene boundary: Episodes, v. 8, no. 2, p. 116-120.

Bassett, W.A., 1961, Potassium-argon age of Devils Tower, Wyoming: Science, v. 134, p. 1373.

Berman, A.E., Poleschook, D., Jr., and Dimelow, T.,E., 1980, Jurassic and Cretaceous Systems of Colorado, in Kent, H.C., and Porter, K.W., editors, Colorado geology: Denver, Colorado, Rocky Mountain Association of Geologists, p. 111-128.

Blakey, R.C., Peterson, Fred, and Kocurek, Gary, 1988, Synthesis of Late Paleozoic and Mesozoic eolian deposits of the Western Interior of the United States: Amsterdam , Elsevier, Sedimentary Geology, v. 56, p. 3-125.

Bown, T.M., 1982, Geology, paleontology, and correlation of Eocene volcaniclastic rocks, southeast Absaroka Range, Hot Springs County, Wyoming: U.S. Geological Survey Professional Paper 1201-A, 75 p.

Bradley, W.H., 1964, Geology of Green River Formation and associated Eocene rocks in southwestern Wyoming and adjacent parts of Colorado and Utah: U.S. Geological Survey Professional Paper 496-A, p. A1-A86.

Bralower, T.J., Ludwig, K.R., Obradovich, J .D., and Jones, D.L., 1990, Berriasian (Early Cretaceous) radiometric ages from the Grindstone Creek section, Sacramento Valley, California: Earth and Planetary Science Letters, v. 98, p. 62-73.

Caparco, N.J., 1989, Callovian and Oxfordian foraminifera from the Late Jurassic of northern and western Wyoming: Laramie, University of Wyoming M.S. thesis, 159 p.

Christiansen, R.L., and Blank, H.R., Jr., 1972, Volcanic stratigraphy of the Quaternary rhyolite plateau in Yellowstone National Park: U.S. Geological Survey Professional Paper 729-B. 18 p.

Christiansen, R.L., Love, J.D., and Reed, J.C., Jr., 1978, Geologic map of the Grassy Lake Reservoir Quadrangle, Yellowstone National Park and vicinity, Wyoming: U.S. Geological Survey Geologic Quadrangle Map GQ-1459, scale 1:62,500.

Cobban, W.A., and Kennedy, W.J., 1989, The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming: U.S. Geological Survey Bulletin 1787-L, 11 p.

Darton, N.H., 1904, Description of the Newcastle Quadrangle, Wyoming and South Dakota: U.S. Geological Survey Geologic Atlas, Folio 107, 9 p.

______, 1908, Paleozoic and Mesozoic of central Wyoming: Geological Society of America Bulletin, v. 19, p. 403-463.

Deiss, Charles, 1938, Cambrian formations and sections in part of Cordilleran trough: Geological Society of America Bulletin, v. 49, p. 1067-1168.

DeJarnett, J.G., 1984, Stratigraphy, sedimentation, corals, and paleogeographic significance of the Mississippian sequence at Mt. Darby, overthrust belt, Wyoming: Laramie, University of Wyoming MS. thesis, 231 p.

Denson, N.M., 1965, Miocene and Pliocene rocks of central Wyoming, in Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1964: U.S. Geological Survey Bulletin 1224‑A, p. A70‑A77.

Denson, N.M., and Botinelly, Theodore, 1949, Geology of the Hartville uplift, eastern Wyoming: U.S. Geological Survey Oil and Gas Investigations Preliminary Map 102, scale 1:48,000.

Denson, N.M., and Harshman, E.N., 1969, Map showing areal distribution of Tertiary rocks, Bates Hole‑Shirley Basin area, south‑central Wyoming: U.S. Geological Survey Miscellaneous Geologic Investigations Map I‑570, scale 1:125,000.

Denson, N.M., and Pipiringos, G.N., 1974, Geologic map and sections showing areal distribution of Tertiary rocks near the southeastern terminus of the Wind River Range, Fremont and Sweetwater Counties, Wyoming: U.S. Geological Survey Miscellaneous Investigations Map I‑835, scale 1:48,000.

Denson, N.M., Zeller, H.D., and Stephens, E.V., 1965, South Pass Formation on the southwest flank of Wind River Mountains, Wyoming, in Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1964: U.S. Geological Survey Bulletin 1224‑A, p. A27‑A29.

De Voto, R.H., 1980, Pennsylvanian stratigraphy and history of Colorado, in Kent, H.C., and Porter, K.W., editors, Colorado geology: Denver, Colorado, Rocky Mountain Association of Geologists, p. 71‑101.

Dorr, J.A., Jr., Spearing, D.R., and Steidtmann, J.R., 1977, Deformation and deposition between a foreland uplift and an impinging thrust belt‑Hoback Basin, Wyoming: Geological Society of America Special Paper 177, 82 p.

Eicher, D.L., 1960, Stratigraphy and micropaleontology of the Thermopolis Shale: Peabody Museum of Natural History, Yale University Bulletin 15, 126 p.

Evernden, J.F., Savage, D.E., Curtis, G.H., and James, G.T., 1964, Potassium‑argon dates and the Cenozoic mammalian chronology of North America: American Journal of Science, v. 262, p. 145‑198.

Eyer, J.A., 1969, Gannett Group of western Wyoming and southeastern Idaho: American Association of Petroleum Geologists Bulletin, v. 53, p. 1368‑1390.

Furer, L.C., 1970, Petrology and stratigraphy of nonmarine Upper Jurassic‑Lower Cretaceous rocks of western Wyoming and southeastern Idaho: American Association of Petroleum Geologists Bulletin, v. 54, p. 2282‑2302.

Gill, J.R., and Cobban, W.A., 1973, Stratigraphy and geologic history of the Montana Group and equivalent rocks, Montana, Wyoming, and North and South Dakota: U.S. Geological Survey Professional Paper 776, 37 p.

Gill, J.R., Merewether, E.A., and Cobban, W.A., 1970, Stratigraphy and nomenclature of some Upper Cretaceous and lower Tertiary rocks in south‑central Wyoming: U.S. Geological Survey Professional Paper 667, 53 p.

Grant, R.E., 1965, Faunas and stratigraphy of the Snowy Range Formation (Upper Cambrian) in southwestern Montana and northwestern Wyoming: Geological Society of America Memoir 96, 171 p.

Hansen, W.R., 1965, Geology of the Flaming Gorge area, Utah­Colorado, Wyoming: U.S. Geological Survey Professional Paper 490, 96 p.

Harshman, E.N., 1968, Geologic map of the Shirley Basin area, Albany, Carbon, Converse, and Natrona Counties, Wyoming: U.S. Geological Survey Miscellaneous Geologic Investigations Map I‑539, scale 1:48,000.

______, 1972, Geology and uranium deposits, Shirley Basin area, Wyoming: U.S. Geological Survey Professional Paper 745, 82 p.

Hausel, W.D., McCallum, M.E., and Roberts, J.T., 1985, The geology, diamond testing procedures, and economic potential of the Colorado‑Wyoming kimberlite province ‑ A review: Geological Survey of Wyoming Report of Investigations 31, 22 p.

Hill, D.J., Izett, G.A., and Naeser, C.W., 1975, Early Tertiary fission track ages of sphene from Devils Tower and Missouri Buttes, Black Hills, northeastern Wyoming: Geological Society of America Abstracts with Programs, v. 7, no. 5, p. 613‑614.

Houston, R.S., and others, 1978, A regional study of rocks of Precambrian age in that part of the Medicine Bow Mountains lying in southeastern Wyoming, with a chapter on The relationship between Precambrian and Laramide structures: Geological Survey of Wyoming Memoir 1, 167 p.

Izett, G.A., Obradovich, J.D., and Mehnert, H.H., 1988, The Bishop ash bed (middle Pleistocene) and some older (Pliocene and Pleistocene) chemically and mineralogically similar ash beds in California, Nevada, and Utah: U.S. Geologi­cal Survey Bulletin 1675, 37 p.

Izett, G.A., and Wilcox, R.E., 1982, Map showing locations and inferred distributions of the Huckleberry Ridge, Mesa Falls, and Lava Creek ash beds (Pearlette family ash beds) of Pliocene and Pleistocene age in the western United States and southern Canada: U.S. Geological Survey Miscellaneous Investigations Map I‑1325, scale 1:4,000,000.

Keefer, W.R., 1965, Stratigraphy and geologic history of the uppermost Cretaceous, Paleocene, and lower Eocene rocks in the Wind River Basin, Wyoming: U.S. Geological Survey Professional Paper 495‑A, 77 p.

______, 1970, Structural geology of the Wind River Basin, Wyoming: U.S. Geological Survey Professional Paper 495‑D, 35 p.

______, 1972, Frontier, Cody, and Mesaverde Formations in the Wind River and southern Bighorn Basins, Wyoming: U.S. Geological Survey Professional Paper 495‑E, 23 p.

Keefer, W.R., and Van Lieu, J.A., 1966, Paleozoic formations in the Wind River Basin, Wyoming: U.S. Geological Survey Professional Paper 495‑B, 60 p.

Keroher, G.C., and others, 1966, Lexicon of geologic names of the United States for 1936‑1960: U.S. Geological Survey Bulletin 1200, Part 1, p. 1028‑1037.

Kirk, Edwin, 1930, The Harding Sandstone of Colorado: American Journal of Science, 5th Series, v. 20, p. 456‑466.

Kurtz, V.E., 1976, Biostratigraphy of the Cambrian and lowest Ordovician, Bighorn Mountains and associated uplifts in Wyoming and Montana: Brigham Young University Geology Studies, v. 23, pt. 2, p. 215‑227.

Lageson, D.R., Maughan, E.K., and Sando, W.J., 1979, The Mississippian and Pennsylvanian (Carboniferous) Systems in the United States- Wyoming: U.S. Geological Survey Professional Paper 1110‑U, 38 p.

Lillegraven, J.A., in preparation, Correlation of Paleogene strata across Wyoming‑A users guide, in Snoke, A.W., and Steidtmann, J.R.,editors., Geology of Wyoming: Geological Survey of Wyoming Memoirs.

Lochman‑Balk, Christina, and Wilson, J.L., 1967, Stratigraphy of Upper Cambrian‑Lower Ordovician subsurface sequence in Williston Basin: American Association of Petroleum Geologists Bulletin, v. 51, no. 6, p. 883‑917.

Love, J.D., 1948, Mesozoic stratigraphy of the Wind River Basin, central Wyoming: Wyoming Geological Association 3rd Annual Field Conference Guidebook, p. 96‑111.

______, 1956, New geologic formation names in Jackson Hole, Teton County, northwestern Wyoming: American Association of Petroleum Geologists Bulletin, v.40, p. 1899‑1914.

______, 1957, Stratigraphy and correlation of Triassic rocks in central Wyoming: Wyoming Geological Association, 12th Annual Field Conference Guidebook, p. 39‑45.

______, 1970, Cenozoic geology of the Granite Mountains area, central Wyoming: U.S. Geological Survey Professional Paper 495‑C, p. C1‑C154.

______, 1973, Harebell Formation (Upper Cretaceous) and Pinyon Conglomerate (uppermost Cretaceous and Paleocene), northwestern Wyoming: U.S. Geological Survey Professional Paper 734‑A p. A1‑A54.

______, 1974a, Geologic map of the south half of the Huckleberry Mountain Quadrangle, Teton County, Wyoming: U.S. Geological Survey Open‑File Report 74‑54, scale 1:24,000.

______, 1974b, Geologic map of the south half of the Mount Hancock Quadrangle, Teton County, Wyoming: U.S. Geological Survey Open‑File Report 74‑127, scale 1:24,000.

______, 1989, Names and descriptions of new and reclassified formations in northwestern Wyoming, in Geology of the Teton‑Jackson Hole region, northwestern Wyoming: U.S. Geological Survey Professional Paper 932‑C, 45 p.

______, in press, Leidy Formation, new name for a Pleistocene glacio‑fluviatile‑lacustrine sequence in northwestern Wyo­ming: U.S. Geological Survey Professional Paper 932‑D.

Love, J.D., and Christiansen, A.C., 1980, Preliminary correlation of stratigraphic units used on 1° x 2° geologic quad­rangle maps of Wyoming, in Stratigraphy of Wyoming: Wyoming Geological Association 31st Annual Field Conference Guidebook, p. 279‑282 and chart in pocket.

______, compilers, 1985, Geologic map ofWyoming: U.S. Geological Survey, scale 1:500,000.

Love, J.D., Christiansen, A.C., Bown, T.M., and Earle, J.L., compilers, 1979a, Preliminary geologic map of the Thermopolis 1° x 2° Quadrangle, central Wyoming: U.S. Geological Survey Open‑File Report 79‑962, scale 1:250,000.

Love, J.D., Christiansen, A.C., and Earle, J.L., compilers, 1978a, Preliminary geologic map of the Sheridan 1° x 2° Quadrangle, northern Wyoming: U.S. Geological Survey Open­File Report 78‑456, scale 1:250,000.

Love, J.D., Christiansen, A.C., Earle, J.L., and Jones, R.W., compilers, 1978b, Preliminary geologic map of the Arminto 1° x 2° Quadrangle, central Wyoming: U.S. Geological Survey Open‑File Report 78‑1089, scale 1:250,000.

______, compilers, 1979b, Preliminary geologic map of the Casper 1° x 2° Quadrangle, central Wyoming: U.S. Geological Survey Open‑File Report 79‑961, scale 1:250,000.

Love, J.D., Christiansen, A.C., and Jones, R.W., compilers, 1979c, Preliminary geologic map of the Lander 1° x 2° Quadrangle, central Wyoming: U.S. Geological Survey Open‑File Report 79‑1301, scale 1:250,000.

Love, J.D., Christiansen, A.C., and McGrew, L.W., compilers, 1987, Geologic map of the Newcastle 1° x 2° Quadrangle, northeastern Wyoming and western South Dakota: Geological Survey of Wyoming Map Series 251, scale 1:250,000.

Love, J.D., Christiansen, A.C., McGrew, L.W., and King, Jon, compilers, 1990, Geologic map of the Gillette 1° x 2° Quadrangle, northeastern Wyoming and western South Dakota: Geological Survey of Wyoming Map Series 25I, scale 1:250,000.

Love, J.D., Christiansen, A.C., and Sever, C.K., compilers, 1980, Geologic map of the Torrington 1° x 2° Quadrangle, south­eastern Wyoming and western Nebraska: U.S. Geological Survey Miscellaneous Field Studies Map MF‑1184, scale 1:250,000.

Love, J.D., Denson, N.M., and Botinelly, Theodore, 1949, Geology of the Glendo area, Wyoming: U.S. Geological Survey Oil and Gas Investigations Preliminary Map 92, scale 1:48,000.

Love, J.D., and Keefer, W.R., 1969, Basin Creek uplift and Heart Lake Conglomerate, southern Yellowstone National Park, Wyoming: U.S. Geological Survey Professional Paper 650­D, p. D122‑D130.

Love, J.D., Leopold, E.B., and Love, D.W., 1978c, Eocene rocks, fossils, and geologic history, Teton Range, northwestern Wyoming: U.S. Geological Survey Professional Paper 932­B,40 p.

Love, J.D., McKenna, M.C., and Dawson, M.R., 1976, Eocene, Oligocene, and Miocene rocks and vertebrate fossils at the Emerald Lake locality, 3 miles south of Yellowstone National Park, Wyoming: U.S. Geological Survey Professional Paper 932‑A, 28 p.

Love, J.D., Reed, J.C., Jr., and Christiansen, A.C., 1992, Geologic map of Grand Teton National Park, Teton County, Wyoming: U.S. Geological Survey Miscellaneous Investigations Series Map I‑2031, scale 1:62,500.

Masursky, Harold, 1962, Uranium‑bearing coal in the eastern part of the Red Desert area [Wyoming]: U.S. Geological Survey Bulletin 1099‑B, 152 p.

Maughan, E.K., 1964, The Goose Egg Formation in the Laramie Range and adjacent parts of southeastern Wyoming: U.S. Geological Survey Professional Paper 501‑B, p. B53‑B60.

______, 1978, Pennsylvanian (Upper Carboniferous) System of Wyoming: U.S. Geological Survey Open‑File Report 78‑377, 32 p.

McCue, J.J., 1953, Facies changes within the Phosphoria Formation in the southeast portion of the Bighorn Basin, Wyoming: Laramie, University of Wyoming M.S. thesis, 88 p.

McDowell, F.W., 1971, K‑Ar ages of igneous rocks from the western United States: Isochron/West, no. 2, p. 1‑16.

McGrew, L.W., 1963, Geology of the Fort Laramie area, Platte and Goshen Counties, Wyoming: U.S. Geological Survey Bulletin 1141‑F, 39 p.

Merewether, E.A., and Cobban, W.A., 1986, Biostratigraphic units and tectonism in the mid‑Cretaceous foreland of Wyo­ming, in Paleotectonics and sedimentation: American Asso­ciation of Petroleum Geologists Memoir 41, p. 443‑468.

Miller, B.M., 1936, Cambrian stratigraphy of northwestern Wyoming: Journal of Geology, v. 44, no. 2, p. 113‑144.

Moberly, Ralph, Jr., 1960, Morrison, Cloverly, and Sykes Mountain Formations, northern Bighorn Basin, Wyoming and Montana: Geological Society of America Bulletin, v. 71, p. 1137‑1176.

 Montagne, John, 1991, Cenozoic history of the Saratoga Valley area, Wyoming and Colorado: University of Wyoming Contributions to Geology, v. 29, no. 1, p. 13‑70.

Naeser, C.W., Izett, G.A., and Obradovich, J.D., 1980, Fission­track and K‑Ar ages of natural glasses: U.S. Geological Survey Bulletin 1489, 31 p.

Nelson, M.E., 1973, Age and stratigraphic relations of the Fowkes Formation, Eocene, of southwestern Wyoming and northeastern Utah: University of Wyoming Contributions to Geology, v. 12, no. 1, p. 27‑31.

Obradovich, J.D., and Cobban, W.A., 1975, A time scale for the Late Cretaceous of the Western Interior of North America: Geological Association of Canada Special Paper 13, p.31‑34.

Obradovich, J.D., and Sutter, J.F., 1984, What is the age of the Cretaceous‑Tertiary boundary as recognized in continental deposits?‑Geological Society of America Abstracts with Programs, v. 16, p. 612.

Odin, G.W., and Hunziker, J.C., 1982, Radiometric dating of the Albian‑Cenomanian boundary, in G.S. Odin, editor, Numerical dating in stratigraphy, Part 1: New York, John Wiley and Sons, p. 537‑556.

Oriel, S.S., and Platt, L.B., 1980, Geologic map of the Preston 1° x 2° Quadrangle, southeastern Idaho and western Wyoming: U. S. Geological Survey Miscellaneous Investigations Map I‑1127; scale 1:250,000.

Oriel, S.S., and Tracey, J.I., Jr., 1970, Uppermost Cretaceous and Tertiary stratigraphy of Fossil Basin, southwestern Wyoming: U.S. Geological Survey Professional Paper 635, 53 p.

Ostrom, J.H., 1970, Stratigraphy and paleontology of the Cloverly Formation (Lower Cretaceous) of the Bighorn Basin area, Wyoming and Montana: Peabody Museum of Natural History, Yale University Bulletin 35, 234 p.

Pekarek, A.H., Marvin, R.F., and Mehnert, H.H., 1974, K‑Ar ages of volcanics in the Rattlesnake Hills, central Wyoming: Geology, v. 2, p. 283‑285.

Pierce, W.G., compiler, 1978, Geologic map of the Cody 1° x 2° Quadrangle, northwestern Wyoming: U.S. Geological Sur­vey Miscellaneous Field Studies Map MF‑963; scale 1:250,000.

Pipiringos, G.N., 1961, Uranium‑bearing coal in the central part of the Great Divide Basin [Wyoming]: U.S. Geological Survey Bulletin 1099‑A, 104 p.

Pipiringos, G.N., and Denson, N.M., 1970, The Battle Spring Formation in south‑central Wyoming, in Symposium on Wyoming sandstones‑Their economic importance: Wyoming Geological Association 22nd Annual Field Conference Guidebook, p. 161‑168.

Pipiringos, G.N., and O'Sullivan, R.B., 1978, Principal unconformities in Triassic and Jurassic rocks, western interior United States‑‑A preliminary survey: U.S. Geological Survey Professional Paper 1035‑A, 29 p.

Reynolds, M.W., 1976, Influence of recurrent Laramide structural growth on sedimentation and petroleum accumulation, Lost Soldier area, Wyoming: American Association of Petroleum Geologists Bulletin, v. 60, no. 1, p. 12‑33.

Robinson, C.S., Mapel, W.J., and Bergendahl, M.H., 1964, Stratigraphy and structure of the northern and western flanks of the Black Hills uplift, Wyoming, Montana, and South Da­kota: U.S. Geological Survey Professional Paper 404, 134 p.

Rocky Mountain Association of Geologists, 1972, Geologic atlas of the Rocky Mountain region, United States of America: Denver, Colorado, 331 p.

Roehler, H.W., 1973, Stratigraphy of the Washakie Formation in the Washakie Basin, Wyoming: U.S. Geological Survey Bulletin 1369, 40 p.

______, 1977, Geologic map of the Rock Springs uplift and adjacent areas, Sweetwater County, Wyoming: U.S. Geological Survey Open‑File Report 77‑242, scale 1:250,000.

______, 1985, Geologic map of the Kinney Rim 30 x 60 minute Quadrangle, Wyoming and Colorado: U.S. Geological Sur­vey Miscellaneous Investigations Series Map 1‑1615, scale 1:100,000.

______, 1991a, Revised stratigraphic nomenclature for the Wasatch and Green River Formations, in Geology of the Eocene Wasatch, Green River, and Bridger (Washakie) Formations, Green River Basin, Wyoming, Utah, and Colo­rado: U.S. Geological Survey Professional Paper 1506‑B, 38 p.

______, 1991b, Godiva Rim Member‑A new stratigraphic unit of the Green River Formation in southwest Wyoming and northwest Colorado, in Geology of the Eocene Wasatch, Green River, and Bridger (Washakie) Formations, Green River Basin, Wyoming, Utah, and Colorado: U.S. Geological Survey Professional Paper 1506‑C, 17 p.

Rubey, W.W., 1973, New Cretaceous formations in the western Wyoming thrust belt: U.S. Geological Survey Bulletin 1372­I, 35 p.

Rubey, W.W., Oriel, S.S., and Tracey, J.I., Jr., 1980, Geologic map and structure sections of the Cokeville 30‑minute quadrangle, Lincoln and Sublette Counties, Wyoming: U.S. Geological Survey Miscellaneous Investigations Map I‑1129, scale 1:62,500.

Ruppel, E.T., 1972, Geology of pre‑Tertiary rocks in the northern part of Yellowstone National Park, Wyoming: U.S. Geological Survey Professional Paper 729‑A, 66 p.

Russell, W.L., 1928, The origin of artesian pressure: Economic Geology, v. 23, no. 2, p. 132‑157.

Ryer, T.A., McClurg, J.J., and Muller, M.M., 1987, Dakota‑Bear River paleoenvironments, depositional history, and shore line trends‑ implications for foreland basin tectonics, south­western Green River Basin and southern Wyoming Overthrust Belt: Wyoming Geological Association 38th Annual Field Conference Guidebook, p. 179‑206.

Sandberg, C.A., 1961, Widespread Beartooth Butte Formation of Early Devonian age in Montana and Wyoming and its paleogeographic significance: American Association of Petroleum Geologists Bulletin, v. 45, no. 8, p. 1301‑1309.

Sandberg, C.A., and Klapper, G., 1967, Stratigraphy, age, and paleotectonic significance of the Cottonwood Canyon Member of the Madison Limestone in Wyoming and Montana: U.S. Geological Survey Bulletin 1251‑B, 70 p.

Sandberg, C.A., and Mapel, W.J., 1967, Devonian of the northern Rocky Mountains and plains, in Oswald, D.H., editor, International symposium on the Devonian System, Calgary, Alberta, September, 1967: Alberta Society of Petroleum Geologists, v. 1, p. 843‑877.

 Sandberg, C.A., Poole, F.G., and Johnson, J.G., 1989, Upper Devonian of western United States, in McMillan, N.J., Embry, A.F., and Glass, D.J., editors, Devonian of the world: Canadian Society of Petroleum Geologists Memoir 14, v. 1, Regional Syntheses, p. 183‑220.

Sando, W.J., Gordon, Mackenzie, Jr., and Dutro, J.T., Jr., 1975, Stratigraphy and geologic history of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming: U.S. Geological Survey Professional Paper 848‑A, 83 p.

Sando, W.J., and Sandberg, C.A., 1987, New interpretations of Paleozoic stratigraphy and history in the northern Laramie Range and vicinity, southeast Wyoming: U.S. Geological Survey Professional Paper 1450, 39 p.

Sheldon, R.P., Cressman, E.R., Cheney, T.M., and McKelvey, V.E., 1967, Middle Rocky Mountains and northeastern Great Basin, in Paleotectonic investigations of the Permian System in the United States: U.S. Geological Survey Profes­sional Paper 515‑H, p. 153‑170.

Smedes, H.W., and Prostka, H.J., 1972, Stratigraphic framework of the Absaroka Volcanic Supergroup in the Yellowstone National Park region: U.S. Geological Survey Professional Paper 729‑C, 33 p.

Staatz, M.H., 1983, Geology and description of the thorium and rare‑earth deposits in the southern Bear Lodge Mountains, northeastern Wyoming: U.S. Geological Survey Professional Paper 1049‑D, 52 p.

Steidtmann, J.R., and Middleton, L.T., 1986, Eocene‑Pliocene stratigraphy along the southern margin of the Wind River Range, Wyoming‑Revisions and implications from field and fission‑track studies: The Mountain Geologist, v. 23, no. 1, p. 19‑25.

Swisher, C.C., III, and Prothero, D.R., 1990, Single‑crystal 40Ar/ 39Ar dating of the Eocene‑Oligocene transition in North America: Science, v. 249, p. 760‑762.

U.S. Geological Survey, 1972, Geologic map of Yellowstone National Park: U.S. Geological Survey Miscellaneous Geologic Investigations Map I‑711, scale 1:125,000.

______, 1978, Geological Survey Research 1978: U.S. Geological Survey Professional Paper 1100, 464 p.

Verville, G.J., 1957, Wolfcampian fusulinids from the Tensleep Sandstone in the Bighorn Mountains, Wyoming: Journal of Paleontology, v. 31, no. 2, p. 349‑352, plate 6.

Woodburne, M.O., 1987, Cenozoic mammals of North America: University of California Press, 336 p.

Wyoming Geological Association, 1969, Wyoming stratigraphic nomenclature chart: Wyoming Geological Association 21st Annual Field Conference Guidebook, p. 7.

Wyoming Geological Association Nomenclature Committee, 1956, Wyoming stratigraphy‑Part 1, Subsurface stratigraphy of the pre‑Niobrara formations in Wyoming: Casper, Wyoming, 98 p.