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Ammonites of early cretaceous age (Valanginian and Hauterivian) from The Pacific coast statesss / by Ralph W. Imlay.
by Imlay, Ralph Willard, 1908-1989. Material type:  Book Publisher: Washington : United States Government Printing Office, 1960Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(73) IML] (1).
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Early Cretaceous (Albian) Ammonites from the Chitina valley and Talkeetna Mountains, Alaska / by Ralph W. Imlay.
by Imlay, Ralph Willard, 1908-1989. Material type: Book Publisher: Washington : United States Government Printing Office, 1960Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(798) IML] (1).
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Jurassic (Bathonian or early Callovian) Ammonites from Alaska and Montana / by Ralph W. Imlay.
by Imlay, Ralph Willard, 1908-1989. Material type: Book Publisher: Washington : United States Government Printing Office, 1962Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(786+798) IML] (1).
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Late Jurassic Ammonites from the western Sierra Nevada, California / by Ralph W. Imlay.
by Imlay, Ralph Willard, 1908-1989. Material type: Book Publisher: Washington : United States Government Printing Office, 1961Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(794) IML] (1).
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Late Bajocian ammonites from the cook Inlet region, Alaska / by Ralph W. Imlay.
by Imlay, Ralph Willard, 1908-1989. Material type: Book Publisher: Washington : United States Government Printing Office, 1962Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(798) IML] (1).
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Middle bajocian ammonites from the cook inlet region Alaska / by Ralph W. Imlay.
by Imlay, Ralph Willard, 1908-1989. Material type: Book Publisher: Washington : United States Government Printing Office, 1964Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(798) IML] (1).
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The late Cretaceous cephalopod Haresiceras reeside and its possible origin / by William A. Cobban.
by Cobban, William Aubrey, 1916-2015. Material type: Book Publisher: Washington : United States Government Printing Office, 1964Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(73) COB] (1).
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Stratigraphy and Ammonite fauna of the graneros shale and Greenhorn Limestone near Pueblo, Colorado / by William A. Cobban and Glenn R. Scott.
by Cobban, William Aubrey, 1916-2015 | Scott, Glenn R, 1918-2012. Material type: Book Publisher: Washington : United States Government Printing Office, 1972Availability: Items available for loan: Biblioteca Aranzadi [Call number: 564.53(788) COB] (1).
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