Adams, A.B. 1969. Eternal Quest: The Story of the Great Naturalists. G.P. Putnam's Sons, New York.
Buffon, G. L. L. 1835. Oeuvres complètes de Buffon. Nouvelle Édition, Tome Premier. E.-L.-C. Mauprivez, Paris.
Hall, B.K. 1992. Evolutionary Developmental Biology. Chapman and Hall, London.
Rudwick, M.J.S. 1985. The Meaning of Fossils: Episodes in the History of Palaeontology. University of Chicago Press, Chicago.
Smith, J.C. 1993. Georges Cuvier: An Annotated Bibliography of his Published Works. Smithsonian Institution Press, Washington DC.