Terrane Unit : NA
             Name : Ancestral North America

      Description : Middle Proterozoic to Carboniferous passive and   
                    offshelf continental margin sediments, Devonian to
                    Carboniferous clastic wedges, Pennsylvanian to    
                    Jurassic passive continental margin prism and     
                    Permian clastics                                  

      Assemblages : mPCM Cap Mountain, umPM Mackenzie, mPMu Muskwa,   
                    mPPW Purcell-Wernecke, uPW Windermere, uPWR       
                    Rapitan, uPPI Pinguicula, PCG Gog, PCH Hyland, mCr
                    rift assemblages, CDR Rocky Mountains, DMB Besa   
                    River, DME Earn, DMI Imperial, PJ Jungle Creek,   
                    TrJS Spray River, JKP Parsons                      

   Plutonic Rocks : mPgH Hellroaring Creek, mPdM Moyie, LPqD          
                    Deserters, LPdM MacDonald, LPdR Rackla, LPdT      
                    Thundercloud, Sy Bearpaw Ridge                    

         Age Range: Middle Proterozoic - Jurassic                       
       Maximum Age: 1600.0 Ma
       Minimum Age:  146.0 Ma