Preston Ercelle Cloud, Jr. (26. 9. 1912. – 1991) je američki paleontolog, geograf i profesor. Najpoznatiji je po svom radu na polju geološke kronologije i porijeklu života na Zemlji.

KnjigeUredi

  • Cloud, Preston (1942). Terebratuloid Brachiopoda of the Silurian and Devonian. The Society. 
  • Cloud, Preston (1948). Some Problems and Patterns of Evolution Exemplified by Fossil Invertebrates. Society for the Study of Evolution. 
  • Cloud, Preston (1969). Our Disappearing Earth Resources. Field Enterprises Educational Corporation. 
  • Cloud (with Gibor, Aharon), Preston (1970). The Oxygen Cycle. W.H. Freeman. 
  • Cloud, Preston (1976). Major Features of Crustal Evolution. Geological Society of South Africa. 
  • Cloud, Preston (1978). Cosmos, Earth and Man: Short History of the Universe. New Haven, Conn.: Yale University Press. ISBN 978-0300021462. 
  • Cloud (with Dunham,Kingsley Charles, and Wilson, John Tuzo), Preston (1989). The Evolving Earth. Guild Publishing. 
  • Cloud, Preston (1989). Oasis in Space: Earth History from the Beginning. W W Norton & Co Inc. ISBN 978-0393305838.