CAMBRIAN GEOLOGY AND PALEONTOLOGY 

 III 



No. I.— THE CA^I BRIAN FAUNAS OF EASTERN ASIA 



By CHARLES D. WALCOTT 



(With Plates i to 3) 



CONTENTS PAGE 



Introduction 2 



Prefatory observations 3 



The Cambrian faunas of China 5 



Historical review 5 



Synonymic references (genera and species in which changes have been 



made since publication of original description and reference) 14 



Localities (with lists of genera and species at each) 17 



Chinese localities 1 7 



Manchurian localities 31 



List of all species from Liau-tung, Manchuria, with locality numbers. . 35 



Geological conditions 36 



Pre-Cambrian continental conditions 36 



Unconformity at base of Cambrian 38 



The geologic formations 39 



Lower Sinian, Man-t'o shale 39 



Middle Sinian, Kiu-lung group 40 



Relation of the Cambrian to the Ordovician 41 



Tsinania, new genus, described 43 



Paleontology 43 



Stratigraphic and geographic distribution of species 43 



Summary of genera and species 44 



General stratigraphic and geographic position of the Cambrian 

 faunas of China (with list of species indicating page and plate 



references) . .• 44 



Relations of the fauna to tj'pical stratigraphic section 50 



Sections in Shan-tung 5 1-56 



Section in Manchuria 56 



Discussion of the Cambrian fauna of China 56 



The larger f aunal horizons 60 



Stratigraphic range of Upper Cambrian genera in China (table) . 69 



Faunal provinces of the Cambrian in Asia 69 



Bibliography 7Z 



Smithsonian Miscellaneous Collections, Vol. 64, No. 1 



