lO 





Lower 

 Cambrian 



Middle 

 Cambrian 



Upper 

 Cambrian 



Shan-tung 



Shan-si 



Shen-,-.i 



Liau-tung 



Damesella blackwclJc ri 





X 





X 







X 



D. brevicandata 





X 





i X 









D. sp. undt. 





X 





X 







X 



Drepamira keltekri 





X 





X 









D. premesnili 





X 





X 







X 



P/ydioparia acUs 



X 







X 









P. granosa 



X 







X 









P. iDipar 



X 







! X 









P. i»ipar var. ? 





X 





X 









P. kochibei 





X 











X 



P. ligea 



X 







X 









P. niia 





X 







X 







P. ? iolns 





X 





! X 









P. typiis 





X 











X 



P. spp. undt. 





X 





X 









P. {Eminrichella) hroinns 





X 





j X 









P. {£.) cointricta 



X 







1 X 









P. (£'.) eriopia 





X 





X 









P. (E.) inantoensis 



X 







X 









P. (i£".) iheano 





X 





: 









CoHokephaliua behts 







X 



X 









C. dry ope 







X 



X 









C. maia 





X 







X 







C. vesta 





X 







X 







C. sp. undt. 





X 







X 







Crepicephahis coiive.xus 





X 











X 



C. damia 





X 





X 



X 







C. ntagnus 





X 





X 









IjOiuiiccepliahis lelliis 





X 





' X 









Liostraciim kraiisei 





X 





X 







X 



