Search results for: Imlay, Ralph W. (Ralph Willard), 1908-1989

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  1. 1

    Middle Jurassic (Bajocian and Bathonian) ammonites from northern Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Govt. Print. Off, 1976
    Physical Description: iii, 22 pages, 4 leaves of plates : illustrations ; 29 cm.
    Government Document Book
  2. 2

    Late Bajocian ammonites from southern Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Department of the Interior, Geological Survey ; For sale by the Distribution Branch, U.S. Geological Survey, 1982
    Physical Description: iii, 19 pages, 7 leaves of plates : illustrations, maps ; 28 cm.
    Government Document Book
  3. 3

    Jurassic (Oxfordian and Late Callovian) ammonites from the western interior region of the United States

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Department of the Interior, Geological Survey ; For sale by the Distribution Branch, U.S. Geological Survey, 1982
    Physical Description: iv, 44 pages, 26 pages of plates : illustrations, 1 map ; 29 cm.
    Government Document Book
  4. 4

    Late Jurassic ammonites from Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. G.P.O.; For sale by the Distribution Branch, U.S. Geological Survey (604 S. Pickett St., Alex., Va. 22304), 1981
    Physical Description: iv, 40 pages, 12 leaves of plates : illustrations, 11 maps ; 29 cm.
    Government Document Book
  5. 5

    Early and middle Bajocian (middle Jurassic) ammonites from southern Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: Department of the Interior, U.S. Geological Survey ; For sale by the Distribution Branch, USGS, 1985
    Physical Description: iv, 38 pages, 2 pages of plates : illustrations, maps ; 29 cm.
    Government Document Book
  6. 6

    Jurassic paleobiogeography of the conterminous United States in its continental setting

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: Department of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. Govt. Print. Off, 1980
    Physical Description: v, 134 pages : illustrations, maps ; 29 cm.
    Government Document Book
  7. 7

    Middle Jurassic (Bathonian) ammonites from southern Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: Department of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. Govt. Print. Off, 1980
    Physical Description: iv, 42 pages, 25 unnumbered pages : illustrations ; 29 cm.
    Government Document Book
  8. 8

    Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Department of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. G.P.O., 1980
    Physical Description: 24 pages, 5 pages of plates : illustrations, maps ; 29 cm.
    Government Document Book
  9. 9

    Middle Jurassic (Bajocian) ammonites from eastern Oregon

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Govt. Print. Off, 1973
    Physical Description: iv, 100 pages : illustrations ; 30 cm.
    Government Document Book
  10. 10

    Characteristic Lower Cretaceous megafossils from northern Alaska.

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Govt. Print. Off, 1960
    Physical Description: 74 pages : illustrations, maps, tables ; 29 cm.
    Book
  11. 11

    Characteristic marine Jurassic fossils from the western interior of the United States

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1948
    Physical Description: 1 online resource (35 unnumbered pages) : illustrations.
    Connect to online resource - All users (Federal Depository Library Program Persistant URL)
    Government Document Electronic eBook
  12. 12

    Marine Jurassic pelecypods from central and southern Utah

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Department of the Interior, Geological Survey, 1964
    Physical Description: 1 online resource (iii, C42 pages, 8 pages of plates) : illustrations, map.
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    Government Document Electronic eBook
  13. 13

    Upper Jurassic mollusks from eastern Oregon and western Idaho

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: U.S. Department of the Interior, Geological Survey, 1964
    Physical Description: 1 online resource (iii, D21 pages, 8 pages of plates) : illustrations, maps.
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    Government Document Electronic eBook
  14. 14

    The Mesozoic pelecypods Otapiria Marwick and Lupherella Imlay, new genus, in the United States

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1967
    Physical Description: 1 online resource (iii, B11 pages, 2 pages of plates) : illustrations, maps.
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    Government Document Electronic eBook
  15. 15

    Middle Bajocian ammonites from the Cook Inlet region, Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1964
    Physical Description: 1 online resource (iv, B61, 29 pages of plates) : illustrations, maps.
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    Government Document Electronic eBook
  16. 16

    Late Bajocian ammonites from the Cook Inlet region, Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1962
    Physical Description: 1 online resource (iii, A-14, 5 pages of plates) : illustrations, maps.
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    Government Document Electronic eBook
  17. 17

    Twin Creek limestone (Jurassic) in the western interior of the United States

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1967
    Physical Description: 1 online resource (iv, 105 pages, 16 pages of plates) : illustrations, maps.
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    Government Document Electronic eBook
  18. 18

    Characteristic Jurassic mollusks from northern Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1955
    Physical Description: 1 online resource (33 unnumbered pages, 5 unnumbered pages of plates) : map + 1 plate.
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    Government Document Electronic eBook
  19. 19

    Succession and speciation of the pelecypod Aucella

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1959
    Physical Description: 1 online resource (21 unnumbered page, 4 unnumbered pages of plates) : illustrations.
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    Government Document Electronic eBook
  20. 20

    Early Cretaceous (Albian) ammonites from the Chitina Valley and Talkeetna Mountains, Alaska

    Authors: Imlay, Ralph W. (Ralph Willard), 1908-1989
    Published: United States Department of the Interior, Geological Survey, 1960
    Physical Description: 1 online resource (32 unnumbered pages, 9 unnumbered pages of plates) : illustrations, maps.
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    Government Document Electronic eBook