The larger fossil Foraminifera of the Panama Canal Zone. - Cushman, Joseph A. (Joseph Augustine), 1881-1949. (Washington, Govt. print. off., 1918)
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 89-102, with plates 34-45."
Keywords: Foraminifera, Fossil; Paleontology -- Panama