Pough, F. Harvey Vertebrate life / F. Harvey Pough, Christine M. Janis, John B. Heiser - 7th ed. - Upper Saddle River, N.J. : Pearson Prentice Hall, 2005 - 1 v. (various pagings) : ill. ; 26 cm. Includes bibliographical references and index ISBN: 0131453106 RM459.50 Subjects--Topical Terms: VertebratesVertebrates, Fossil