THE CAMBRIAN FAUNAS OF CHINA. 



HISTORICAL REVIEW. 



"The presence of Cambrian fossils in China was first announced by Baron 

 von Richthofen in 1883 [China, vol. iv]. The material gathered by him was 

 studied by Dr. E. Kayser, to whom the brachiopods were intrusted, and by 

 Dr. W. Dames, who described the trilobites. 



Doctor Kayser described and named the following brachiopods [1883, 

 pp. 34-35]: Orthis linnarssoni = Eoorthis linnarssoni; LingiilcHa sp.; L. sp. 

 Of these, we have identified Eoorthis linnarssoni from the collections of the 

 Carnegie Institution of Washington Expedition to China. 



Doctor Dames described and named the following trilobites [1883, pp. 

 7-29] : 



Agnostus chinensis Anomocare latelimbalum Liostrac us megalnrus 



Dorypyge richthofeni Anomocare majus Lioslracits talingensis 



Conocephalite s frcque ns Anomocare minus ? Liostracus 



Conocephalites quadriceps Anomocare nanum ? Liostracus 



Conocephalites subquadratus Anomocare plenum Two pygidia, gen. and sp. 



Conocephalites typus Anomocare subcostatum undt. 



The material described by Doctor Dames came from three localities in 

 Liau-tung, as follows: 



Sai-ma-ki (in situ): 



Lingulella Conocephaliles quadriceps Anomocare nanum 



Agnostus chinensis Anomocare latelimbatum Anomocare subcostatum 



Conocephalites frequens Anomocare majus 



Ta-ling (loose rock in wall): 



Dorypyge richthofeni Conocephaliles typus Liostracus talingensis 



Conocephalites frequens Anomocare minus Liostracus sp. ? 



Conocephalites subquadratus Anomocare nanum 



Wu-lo-pu (debris slope): 



Dorypyge richthofeni Anomocare planum Liostracus megalurus 



Of the above we have identified in our collections : 



Agnostus chinensis Anomocare latelimbatum 



Dorypyge richthofeni Anomocare minus 



Conocephalites subquadratus = Anomocare Liostracus megalurus = Anomocare 

 Conocephalites typus = Ptychoparia 



Doctor Dames compared the Cambrian trilobites with those of Europe, 

 America, and India, and concluded that the trilobitic fauna of Sai-ma-ki and 

 Ta-ling was about the age of the Scandinavian Andrarum limestone and the 

 Potsdam group of North America. He did not find any Chinese species that 

 could be identified with those of Scandinavia and America, but the general 

 appearance of the fauna as a whole was so similar that he considered their 



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