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  1. 1
    Fusulinid paleontology and biostratigraphy of the Middle Permian (Guadalupian) strata of the Glass Mountains and Del Norte Mountains, west Texas /
    by Yang, Zhendong, 1945-
    Published 1993
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    Thesis Book
  2. 2
    The Texan Permian and its Mesozoic types of fossils /
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    Government Document eBook
  3. 3
    The Manzano group of the Rio Grande valley, New Mexico /
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    Government Document eBook
  4. 4
    Depositional environments of the White Rim Sandstone Member of the Permian Cutler Formation, Canyonlands National Park, Utah /
    by Steele, Brenda A.
    Published 1987
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    Government Document eBook
  5. 5
    Minor elements in bedrock soil, and vegetation at an outcrop of the Phosphoria Formation on Snowdrift Mountain southeastern Idaho /
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    Government Document eBook
  6. 6
    The Upper Paleozoic Madera group in the Manzano Mountains, New Mexico /
    by Myers, Donald A., 1921-
    Published 1972
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    Government Document eBook
  7. 7
    Revision of the type Mankomen Formation (Pennsylvanian and Permian), Eagle Creek area, eastern Alaska Range, Alaska /
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    Government Document eBook
  8. 8
    Stratigraphy of the Wichita group in part of the Brazos River Valley, north Texas /
    by Stafford, Philip T.
    Published 1960
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    Government Document
  9. 9
    The Skolai Group in the McCarthy B-4, C-4, and C-5 quadrangles, Wrangell Mountains, Alaska : definition and description of a new low-grade metamorphic sequence /
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    Government Document eBook
  10. 10
    Probable Permian age of the Rampart Group, central Alaska : fossil collections and rock samples from a limestone bed within the volcanic sequence of the Rampart Group show that the group is probably Permian in age /
    by Brosgé, William Peters, 1921-
    Published 1969
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    Government Document eBook
  11. 11
    The Supai Group -- subdivision and nomenclature /
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    Government Document eBook
  12. 12
    The Permian and Triassic Seven Devils Group, western Idaho and northeastern Oregon /
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    Government Document eBook
  13. 13
    Geology of the Grosvenor quadrangle, Brown and Coleman Counties, Texas /
    by Terriere, Robert T., 1926-
    Published 1960
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    Government Document
  14. 14
    Pennsylvanian and Permian rocks of the southern Inyo Mountains, California /
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    Government Document eBook
  15. 15
    Correlation of Permian and Pennsylvanian sections between Egan Range and Spring Mountains, Nevada /
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    Government Document eBook
  16. 16
    Stratigraphy of the State Bridge Formation in the Woody Creek quadrangle, Pitkin and Eagle Counties, Colorado /
    by Freeman, Val L., 1926-
    Published 1971
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    Government Document eBook
  17. 17
    Variations in vitrinite reflectance values for the Upper Cretaceous Mesaverde Formation, Southeastern Piceance Basin, northwestern Colorado : implications for burial history and potential hydrocarbon generation /
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    Government Document eBook
  18. 18
    Revisions of Middle Jurassic nomenclature in the southeastern San Juan basin, New Mexico /
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    Government Document eBook
  19. 19
    Sedimentology and depositional environments of the Lower Permian Yeso Formation, northwestern New Mexico /
    by Stanesco, John D.
    Published 1991
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    Government Document eBook
  20. 20
    Permian rock units in the Glass Mountains, west Texas : nomenclature, revisions in ages, and local correlations of rock units of the Leonard Series and lower part of the Guadalupe Series /
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    Government Document eBook
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