The sedimentary formations of the Panama canal zone, with special reference to the stratigraphic relations of the fossiliferous beds. - MacDonald, Donald F. (Donald Francis), 1875-1942. (Washington, Govt. print. off., 1919)
At head of title: Contributions to the geology and paleontology of the canal zone, Panama, and geologically related areas in Central America and the West Indies.
"Extract from Bulletin 103, pages 525-545, with plates 153-154."
Keywords: Sedimentary rocks; Geology, Stratigraphic; Geology -- Panama