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Displaying 1-21 of 21 results for author "Imlay, Ralph W. (Ralph Willard), 1908-1989"
Characteristic marine Jurassic fossils from the western interior of the United States / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1948.
- 1947
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo80555Upper Jurassic mollusks from eastern Oregon and western Idaho / by Ralph W. Imlay.
- Text
- Washington : U.S. Department of the Interior, Geological Survey, 1964.
- 1964
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo80824Middle Bajocian ammonites from the Cook Inlet region, Alaska / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1964.
- 1964
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo82882The Mesozoic pelecypods Otapiria Marwick and Lupherella Imlay, new genus, in the United States / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1967.
- 1967
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo82866Late Bajocian ammonites from the Cook Inlet region, Alaska / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1962.
- 1962
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo82936Twin Creek limestone (Jurassic) in the western interior of the United States / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1967.
- 1967
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo83787Characteristic Jurassic mollusks from northern Alaska / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1955.
- 1955
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo85414Succession and speciation of the pelecypod Aucella / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1959.
- 1959
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo86491Characteristic Lower Cretaceous megafossils from northern Alaska / by Ralph W. Imlay; prepared in cooperation with the U.S. Department of the Navy, Office of Naval Petroleum and Oil Shale Reserves.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1960.
- 1960
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo86726Ammonites of early cretaceous age (Valanginian and Hauterivian) from the Pacific coast states / by Ralph W. lmlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1960.
- 1960
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo86725Late Jurassic ammonites from the western Sierra Nevada, California / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1961.
- 1961
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo86762Early Cretaceous (Albian) ammonites from the Chitina Valley and Talkeetna Mountains, Alaska / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1960.
- 1960
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo86679Some Jurassic ammonites from central Saudi Arabia / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1970.
- 1970
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo87691Ammonites from the Buchia zones in northwestern California and southwestern Oregon / by Ralph W. Imlay and David L. Jones.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1970.
- 1970
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo87744Jurassic paleobiogeography of Alaska / by Ralph W. Imlay and Robert L. Detterman.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1973.
- 1973
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo88495Middle Jurassic (Bajocian) ammonites from eastern Oregon / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1973.
- 1973
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo88491Stratigraphic distribution and zonation of Jurassic (Callovian) ammonites in southern Alaska / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1975.
- 1975
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo89157Middle Jurassic (Bajocian and Bathonian) ammonites from northern Alaska / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1976.
- 1976
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo89202Middle Jurassic (Bathonian) ammonites from southern Alaska / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1980.
- 1980
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo89954Callovian (Jurassic) ammonites from the United States and Alaska. Part 2. Alaska peninsula and the Cook Inlet regions / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1953.
- 1953
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo106229Callovian (Jurassic) ammonites from the United States and Alaska. Part 1. Western Interior United States / by Ralph W. Imlay.
- Text
- Washington : United States Department of the Interior, Geological Survey, 1953.
- 1953
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo106226
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