Studies of the Mowry shale (Cretaceous) and contemporary formations in the United States and Canada - Reeside, John B. (John Bernard), 1889-1958.; Cobban, William Aubrey, 1916- (Washington, U.S. Govt. Print. Off., 1960)
Bibliography: p. 118-121.
Keywords: Shale; Paleontology -- Cretaceous; Paleontology -- North America; Ammonoidea