

Lower 

 Cambrian 



Middle 

 Cambrian 



Upper 

 Cambrian 



Shan-tun 



Shan-si 



Shen-si 



Liau-tung 



I^oorthis sp. undt. (b) 





X 







X 













X 



X 









Sviitfo^Jiid oytlitihx 







X 



X 









Gastropoda 

















Scetwllci clot ho 





X 





X 









S, ? dilciicifiis 





X 







X 







S. sp. undt. 







X 



X 









JMatJierclIa ctyce 







X 



X 









Slraparoliiihi Sp. undt. 





X 





X 









Pela^^iella cJiroiius 





X 





X 









P, dvtia 







X 



X 









P, pagoiia 



•p 







X 



X 









p. -.mllisi 





X 







X 







IJekioiulla ? chiriiis 





X 





X 









H. rii^osa chiiiejists 



X 







X 









H . rit^osix orieiitiibs 





X 





X 









H. ? ? stDiJ'kx 





X 







X 







Pteropoda. 

















HyoHtJtes cyhele 





X 





X 









H. daflinis 







X 



X 









H. delia 



X 







X 









H. sp. undt. 



X 







X 





X 





Orthotheca cyre)j£ 





X 



X i 



X 







X 



0, cyrene dry as 





X 





X 









O. daiiris 





X 





X 









0. del/hus 





X 





X 







X 



0. cfr. delplitis 





X 











X 



O. dons 





X 









X 





0. glabra 





X 







X 1 





X 



O sp. undt. 







X 



X 









