Ralph Willard Imlay

Ralph Willard Imlay (* 1908; † 1989) war ein US-amerikanischer Geologe und Paläontologe. Er war Experte für Wirbellosen-Paläontologie des Jura und der unteren Kreide in Nordamerika und Research Associate am National Museum of Natural History (Smithsonian).

Imlay wurde 1933 an der University of Michigan promoviert und war ab 1940 als Geologe beim US Geological Survey, bei dem er bis zu seinem Ruhestand blieb und ausgedehnte Feldstudien im Westen der USA, Alaska und Mexiko betrieb und für den Survey Fossilien (besonders Ammoniten) aus dem Jura sammelte. 1967 bis zu seinem Tod forschte er außerdem am National Museum of Natural History.

1964 war er Präsident der Paleontological Society. Veröffentlicht in Wikipedia
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  1. 1
    Early and middle Bajocian (Middle Jurassic) ammonites from southern Alaska studies of the early and middle Bajocian ammonites of southern Alaska provide close age determinations and correlations with Europe, Arctic Alaska, Arctic Canada and the Pacific Coast region in general

    Early and middle Bajocian (Middle Jurassic) ammonites from southern Alaska studies of the early and middle Bajocian ammonites of southern Alaska provide close age determinations an... von Imlay, Ralph Willard

    Veröffentlicht 1984
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  2. 2
    Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho the late Bathonian to middle Callovian ammonite succession in eastern Oregon is remarkably similar to that in southern Alaska

    Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho the late Bathonian to middle Callovian ammonite succession in eastern Oregon is remarkably similar... von Imlay, Ralph Willard

    Veröffentlicht 1981
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  3. 3
    Middle Jurassic (Bathonian) ammonites from southern Alaska studies of Bathonian ammonites from southern Alaska provide correlations with the arctic region in general, with the Pacific coast and western interior regions of North America and with the early Bathonian of some other parts of the world

    Middle Jurassic (Bathonian) ammonites from southern Alaska studies of Bathonian ammonites from southern Alaska provide correlations with the arctic region in general, with the Paci... von Imlay, Ralph Willard

    Veröffentlicht 1980
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  4. 4
    Middle Jurassic (Bajocian) ammonites from eastern Oregon Bajocian ammonites of eastern Oregon greatly resemble those of Alaska and Europe, indicate marine connections with Europe, and permit accurate zonal dating in the Pacific Coast region

    Middle Jurassic (Bajocian) ammonites from eastern Oregon Bajocian ammonites of eastern Oregon greatly resemble those of Alaska and Europe, indicate marine connections with Europe,... von Imlay, Ralph Willard

    Veröffentlicht 1973
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  5. 5
    Jurassic paleobiogeography of Alaska changes in the paleogeography of Alaska during Jurassic time are revealed by the distribution, succession, and differentiation of molluscan faunas and by the characteristics of the associated sedimentary rocks

    Jurassic paleobiogeography of Alaska changes in the paleogeography of Alaska during Jurassic time are revealed by the distribution, succession, and differentiation of molluscan fau... von Imlay, Ralph Willard, Detterman, Robert L.

    Veröffentlicht 1973
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  6. 6
    Ammonites from the Buchia zones in northwestern California and southwestern Oregon some Late Jurassic and Early Cretaceous ammonites date Buchia zones and furnish correlations with the Boreal and Tethyan Realms

    Ammonites from the Buchia zones in northwestern California and southwestern Oregon some Late Jurassic and Early Cretaceous ammonites date Buchia zones and furnish correlations with... von Imlay, Ralph Willard, Jones, David Lawrence 1930-

    Veröffentlicht 1970
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  7. 7
    Characteristic Lower Cretaceous megafossils from northern Alaska

    Characteristic Lower Cretaceous megafossils from northern Alaska von Imlay, Ralph Willard

    Veröffentlicht 1961
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  8. 8
    Late Jurassic ammonites from the Western Sierra Nevada, California shorter contributions to general geology

    Late Jurassic ammonites from the Western Sierra Nevada, California shorter contributions to general geology von Imlay, Ralph Willard

    Veröffentlicht 1961
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  9. 9
    Early Jurassic ammonites from Alaska

    Early Jurassic ammonites from Alaska von Imlay, Ralph Willard

    Veröffentlicht 1981
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  10. 10
    Jurassic paleobiogeography of the conterminous United States in its continental setting paleogeographic changes in the United States during Jurassic time are revealed by the distribution, succession and differentiation of molluscan faunas, by gross stratigraphic changes, by the position, extent and duration of unconformities and by comparisons with Jurassic data elsewhere in North America

    Jurassic paleobiogeography of the conterminous United States in its continental setting paleogeographic changes in the United States during Jurassic time are revealed by the distri... von Imlay, Ralph Willard

    Veröffentlicht 1980
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  11. 11
    Structural and stratigraphic significance of the Buchia zones in the Colyear Springs-Paskenta area, California

    Structural and stratigraphic significance of the Buchia zones in the Colyear Springs-Paskenta area, California von Jones, David Lawrence 1930-, Bailey, Edgar H., Imlay, Ralph Willard

    Veröffentlicht 1969
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  12. 12
    The Mesozoic pelecypods Otapiria Marwick and Lupherella Imlay, new genus, in the United States

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

    Veröffentlicht 1967
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  13. 13
    Middle Bajocian ammonites from the Cook Inlet region, Alaska description and illustrations of cephalopods of Middle Jurassic (middle Bajocian) age

    Middle Bajocian ammonites from the Cook Inlet region, Alaska description and illustrations of cephalopods of Middle Jurassic (middle Bajocian) age von Imlay, Ralph Willard

    Veröffentlicht 1964
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  14. 14
    Late Bajocian Ammonites from the Cook Inlet region, Alaska description and illustrations of cephalopods of Middle Jurassic (late Bajocian) age

    Late Bajocian Ammonites from the Cook Inlet region, Alaska description and illustrations of cephalopods of Middle Jurassic (late Bajocian) age von Imlay, Ralph Willard

    Veröffentlicht 1962
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  15. 15
    Ammonites of early cretaceous age (Valanginian and Hauterivian) from the pacific coast states

    Ammonites of early cretaceous age (Valanginian and Hauterivian) from the pacific coast states von Imlay, Ralph Willard

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  16. 16
    Succession and speciation of the pelecypod Aucella

    Succession and speciation of the pelecypod Aucella von Imlay, Ralph Willard

    Veröffentlicht 1959
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  17. 17
    Characteristic Jurassic Mollusks from northern Alaska A study showing that the northern Alaskan faunal succession agrees with that elsewhere in the Boreal region and in other parts of North America and in northwest Europe

    Characteristic Jurassic Mollusks from northern Alaska A study showing that the northern Alaskan faunal succession agrees with that elsewhere in the Boreal region and in other parts... von Imlay, Ralph Willard

    Veröffentlicht 1955
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  18. 18
    Jurassic (Oxfordian and Late Callovian) ammonites from the western interior region of the United States marine waters invaded Montana in late Callovian time, advanced southward across Wyoming in early Oxfordian time and persisted in Montana during late Oxfordian time

    Jurassic (Oxfordian and Late Callovian) ammonites from the western interior region of the United States marine waters invaded Montana in late Callovian time, advanced southward acr... von Imlay, Ralph Willard

    Veröffentlicht 1982
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  19. 19
    Late Bajocian ammonites from southern Alaska in Alaska, upper Bajocian beds have been found only in the south ; they have been dated by ammonites as early late Bajocian ; apparently, southern Alaska was not connected with the rest of Alaska during late Bajocian time

    Late Bajocian ammonites from southern Alaska in Alaska, upper Bajocian beds have been found only in the south ; they have been dated by ammonites as early late Bajocian ; apparentl... von Imlay, Ralph Willard

    Veröffentlicht 1982
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  20. 20
    Late Jurassic ammonites from Alaska studies of the Late Jurassic ammonites of Alaska enables fairly close age determinations and correlations to be made with Upper Jurassic ammonite and stratigraphic sequences elsewhere in the world

    Late Jurassic ammonites from Alaska studies of the Late Jurassic ammonites of Alaska enables fairly close age determinations and correlations to be made with Upper Jurassic ammonit... von Imlay, Ralph Willard

    Veröffentlicht 1981
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