Education
  • Ph.D., New York University, New York, U.S.A., 1959
  • M.S., New York University, New York, U.S.A., 1957
  • B.S., New York University, New York, U.S.A., 1955

Dr. Rosen was the Chairman of the Department of Ichthyology at the American Museum of Natural History. He was known for his research on the evolution of live-bearing freshwater fishes.