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1
Pennsylvanian and Permian stratigraphy of the northern Argus Range-Darwin Canyon area, California /
Published 1987“…Department of the Interior, U.S. Geological Survey,…”
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2
Mississippian and Pennsylvanian stratigraphy in southwest Montana and adjacent Idaho /
Published 1985“…Department of the Interior, U.S. Geological Survey,…”
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3
The Betsie Shale Member : a datum for exploration and stratigraphic analysis of the lower part of the Pennsylvanian in the Central Appalachian Basin /
Published 1987“…Department of the Interior, U.S. Geological Survey,…”
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4
Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian boundary in Montana /
Published 1967“…U.S. Department of the Interior, Geological Survey,…”
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5
Fusulinidae from the Graford Formation and Winchell Limestone, Canyon Group, Upper Pennsylvanian, in Brown County, Texas /
Published 1967“…U.S. Department of the Interior, Geological Survey,…”
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6
Sedimentology and paleogeographic significance of six fluvial sandstone bodies in the Maroon Formation, Eagle Basin, northwest Colorado /
Published 1987“…Department of the Interior, U.S. Geological Survey,…”
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7
Palynological studies of Middle Pennsylvanian coal beds of the proposed Pennsylvania System stratotype in West Virginia /
Published 1988“…Department of the Interior, U.S. Geological Survey,…”
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8
Palynological studies of lower Pennsylvanian coal beds and adjacent strata of the proposed Pennsylvanian system stratotype in Virginia and West Virginia /
Published 1988“…Department of the Interior, U.S. Geological Survey,…”
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9
Facies analysis, genetic sequences, and paleogeography of the lower part of the Minturn Formation (Middle Pennsylvanian), southeastern Eagle Basin, Colorado /
Published 1992“…U.S. Department of the Interior, U.S. Geological Survey,…”
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10
Pennsylvanian and Early Permian paleogeography of the Uinta-Piceance Basin region, northwestern Colorado and northeastern Utah /
Published 1992“…U.S. Department of the Interior, U.S. Geological Survey,…”
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11
Structural control on distribution of sedimentary facies in the Pennsylvanian Minturn Formation of north-central Colorado /
Published 1991“…U.S. Department of the Interior, U.S. Geological Survey,…”
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12
Geology of the Grosvenor quadrangle, Brown and Coleman Counties, Texas /
Published 1960“…United States Department of the Interior, Geological Survey,…”
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13
The Upper Paleozoic Madera group in the Manzano Mountains, New Mexico /
Published 1972“…United States Department of the Interior, Geological Survey,…”
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14
Revision of the type Mankomen Formation (Pennsylvanian and Permian), Eagle Creek area, eastern Alaska Range, Alaska /
Published 1975“…United States Department of the Interior, Geological Survey,…”
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15
Sturgis Formation (Upper Pennsylvanian), a new map unit in the western Kentucky coal field /
Published 1973“…United States Department of the Interior, Geological Survey,…”
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16
The Supai Group -- subdivision and nomenclature /
Published 1975“…United States Department of the Interior, Geological Survey,…”
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17
Witts Springs Formation of Morrow age in the Snowball quadrangle, north-central Arkansas /
Published 1964“…United States Department of the Interior, Geological Survey,…”
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18
Lower Pennsylvanian species of mariopteris, eremopteris, diplothmema, and aneimites from the Appalachian region /
Published 1943“…United States Department of the Interior, Geological Survey,…”
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19
Two new plant genera of Pennsylvanian age from Kansas coal balls /
Published 1954“…United States Department of the Interior, Geological Survey,…”
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20
Stratigraphy of Pennsylvanian and Lower Permian rocks in Brown and Coleman Counties, Texas /
Published 1960“…United States Department of the Interior, Geological Survey,…”
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