1921] 



NATURAL SCIENCES OF PHILADELPHIA. 





Charge ter and,- 

 distribution 



Thinl;,' be i ied 

 sandstone vith 

 mica Mizi f »:ld- 

 spar, '"'itii 

 Tracks 



Red F.iaie 



;•.■••*• 



It 



Red sandstoT' 

 Y'itn co.igl?i- 

 ernt* 1-iter- 

 bpdded 

 Tooth in the 

 con^lO-TierJite 



WC 



Thinly be.i'.led 

 friable red 

 i-jLale ■^i\a Eand 

 tt'-T.e ••• 1 1 1 

 nica and feld- 

 spar. 



He-ivily oedded 

 rel sandetone 

 V i t n li ca 



Figs. 2 and 3.— Sections showing relative positions of fossiliferous strata. 



