(iv) 10 Palxontologia Sinica Ser. B. 



This is a new fauna and entirely distinct, and may be called the Asiatic 

 Ceratopjfge fauna. The most common gpecis is Mansuyia orientalis (Grabau) Sun which 

 is also abundantly found in the Kaolishan formation. Plycha^rh and Illxnurus are not 

 uncommon. The formation is certainly of uppermost Cambrian age. 



Ftychafipix svbglnhosa Gralxiu also occurs in the Kaolishan formation of Shantung, 

 with which formation this Fongshan series is to be correlated. The limestone conglome- 

 rate in this formation is unlike the wurmkalk (intraformational conglomerate) which is 

 characteristic of the Chaumitien limestone or tlie Changshan scries. 



B. LiNcpiEXG. In Lin-Cheng, Wa M S. Chihli, a complete section was studied by 

 Y. T. Chao and C. C. Tien. A large number of well preserved specimens were obtained 

 from the Kushan formation of that region, none being found in the older formations 

 (Manto and Changhia) 



The subdivisions are as follows: 

 Stper-formation : Lower Ordovician 



(disco nformiti/) 



Middle Cambrian 



Kushan formation 50-100 ft. 



Changhia Umestone 700-800 ft. 



Lower Cambrian 



Manto shale 200-300 ft. 



(disconformity) 

 SUBFORMATION : SlNIAN 



The Kushan formation furnishes the following species: 

 Brachiopoda 



1. Obolus linchengensis Sun 

 Trilobita 



2. Wongia triangulata Sun 



3. Blackwelderia tieni Sun 



4. Stephanocare richthofeni Monke 



5. Blackwelderia sinensis var. linchengensis Sun 

 (■>. Tienistion subconica Sun 



Sfe/ihmiorarf richtJinfpvl Monke and Blnvkivelderia sinensis Walcott are present in 

 this formation, and it is essentially the Kushan shale horizon of Shantung. One new 

 species of B tack m aider in and one new species ol Teh 1 1st inn are also found in this forma- 

 tion. The most unique form is the new genus Wongia of the order proparia. This 

 genus, W'oiKjia, is quite distinct from any known type of foreign countries, and is 

 certainly one of the most characteristic genera of the jMiddle Cambrian of China. 



