PLATE I. 



ayh^Z Sn-eLl 



^^^^M 



^'1'''' ;r'',:i!i'''':i'/il'^nT^ 



-^^4-^'^<t;y;^a>^.y^):JyAVJ^^ 



HaJbueL SrreCi 



fT^ij'il Jill 'lid '('^!'li l' '1! ' " ' :!Vl ' M pfe^ 





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4^:^ ^;■■^^■•,^p■:-^. ■.':i:^.-.tv:- :>:.-■. .rv-v.-.;r:.,.-,r;;w:->t.;i-r;^ 



Legend 



J^arcmnc VMWM TTpperTrias WcS-B^^ 



Cretaceous li^;g;^ij Lorrer Trias. 



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^mf^^r^r^m^ i^w^wd Jia^OLSsic WmMM Carbontf^ I"^|:p';^H"';:^ 



iie San Kafael Swell 



