Upper Cretaceous ... - Clark, William Bullock, 1860-1917; Goldman, Marcus I. (Marcus Isaac), b. 1881; Berry, Edward Wilber, b. 1875; Gardner, Julia Anna, b. 1882; Pilsbry, Henry Augustus, b. 1862; Bassler, Ray S. (Ray Smith), b. 1878; Stephenson, Lloyd William, 1876- (The Johns Hopkins press, 1916)