paleozoology
noun
                                                                                                                            
                                                            pa·leo·zo·ol·o·gy
                    
                                                                                                              
                                                                                                                                  ˌpā-lē-ō-zō-ˈä-lə-jē  
                                                                                                                              
            -zə-ˈwä-
                                                      
                                                          
                                
              
          
                                                      : a branch of paleontology dealing with ancient and fossil animals                                      
                
                    
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  Merriam-Webster unabridged




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