FOEMATIONS AND FOSSILS OF SOUTH MANCHTIRIA 



35 



in North America. If the illustrations of the Kangyao fossils in 

 the accompanying plates are compared with those from the Mosheim 

 limestone figured by Butts, the great similarity of the two faunas 

 is at once apparent.^ 



The following four species are very characteristic of the.Man- 

 churian Santao formation: 



Anthaspidella ? radiata, new species. 

 Anthaspidella ? planulata, new species. 



CalatMum frechi, new species. 

 Piloceras manchuriense, new species. 



Even though all these are new, the Anthaspidella-likQ species and 

 the genus Piloceras are very characteristic of the uppermost Cana- 

 dian in North America. Therefore, it may be assumed that the 

 Santao formation is likely contemporaneous. 



As stated in the introductory chapters, I was permitted to study 

 some new Ordovician fossils from central China. From this study 

 it is clear that the Ordovician strata of southern Shensi and northern 

 Szechwan Provinces have quite different faunal successions as com- 

 pared with Chihli and South Manchuria. No fossils from strata 

 referable to the Black River group have yet been collected in Sze- 

 chwan and Shensi. On the contrary, it is remarkable that the Upper 

 Ordovician CryptoUthus zone (Trinucleus) occurs in both Provinces. 

 As far as known, this Upper Ordovician zone is absent in North 

 China and South Manchuria. 



To sum. up and clarify the discussion in the preceding pages, a 

 generalized correlation table showing the Canadian and Ordovician 

 strata in North China, South Manchuria, North Korea, and North 

 America follows: 





North America 



North China 

 (Kaiping Ba- 

 sin) 



North China 

 (Shihmenchai) 



South Man- 

 churia 



North Korea 



a 

 •S 



V 

 o 



V, 

 o 





Black River. 



3 

 o 



a 





Ssuyen. 



Nanso (?) 



M 

 03 



a 

 Bantatsuan (?) 



^ 



^ 



3 



Blount (Ath- 

 ens). 





Wutiiig. 



Stones River 

 (Mosheim). 





Kangyao. 



a 

 S 

 '•B 



03 



a 



03 



o 



Uppermost 

 Canadian. 





Lingchiashan. 

 Shihmenchai. 

 Peilintze. 



Santao. 



(Maruyama zone)? 

 Shorin zone ? 



a 

 .2 



M 



03 

 « 



o 









Pingohou. 



Kogen fossil zone ? 

 (Tokusen fossil zone). 



" Butts, Charles, Geology of Alabama, p. 102, pi. 19, 1926. 



