Orr, Robert T.
Vertebrate biology
Saunders, 1976
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Vertebrate biology: a laboratory manual
editors, Norman K. Wessells, Elizabeth M. Center
William Kaufmann, 1973
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Colbert, Edwin H.
Evolution of the vertebrates : a history of the backboned animals through time
John Wiley & Sons, 1980
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Pough, F. Harvey
Vertebrate life
Prentice-Hall, 1999
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Simpson, George Gaylord, editor
Fossils and the history of life/George Gaylord Simpson
Scientific American Books , 1983
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