1. Callovian (Jurassic) ammonites from the United States and Alaska. Part 1. Western Interior United States Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1953 Resource Type: Book Access & Availability: Loading
2. Callovian (Jurassic) ammonites from the United States and Alaska. Part 2. Alaska peninsula and the Cook Inlet regions Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1953 Resource Type: Book Access & Availability: Loading
3. Characteristic Jurassic mollusks from northern Alaska Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1955 Resource Type: Book Access & Availability: Loading
4. Characteristic Lower Cretaceous megafossils from northern Alaska Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1960 Resource Type: Book Access & Availability: Loading
5. Characteristic marine Jurassic fossils from the western interior of the United States Author/Creator: Imlay, Ralph W. 1908-1989, (Ralph Willard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1948 Resource Type: Book Access & Availability: Loading