68 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 64 



Obolus matinalis ? (C54) 

 Oholus (Westonia) sp. undt. (C56) 

 Discinopsis stilcatus (C56) 

 Eoorthis pagoda (C54, C56) 

 Syntrophia orthia (CS4, C 56) 

 Scenella sp. undt. (C56) 

 Matherella circe (C56) 

 PeJagiella pagoda (€56) 

 Orthotheca sp. undt. (Cs6) 

 Cyrtoceras cambria (C56) 

 Agnostus sp. undt. (C34) 

 Conokephalina belus (C 56) 

 Conokephalina dryope (C56) 

 Lisania sp. undt. (C41) 

 Pterocephalus busiris (C54) 

 Pagodia bta ( C 56) 

 Pagodia dolon (C41) 

 Pagodia lotos (C56) 



Pagodia macedo (C34) 

 Menocephalus ? depressus (C49, 



C56) 

 Ptychaspis brizo (C38) 

 Ptychaspis cadmus (C41) 

 Ptychaspis calchas (C41) 

 Ptychaspis calyce (C42) 

 Ptychaspis campe (C42) 

 Ptychaspis ceto (C34, C 38, C 54, 



C56) 

 Ptychaspis sp. undt. (C54) 

 Coosia carme (C38) 

 Hysterolenus sp. (C38) 

 Hysterolenus f (C56) 

 Tsinania canens (C34, C 38, C 54) 

 Tsinania ceres (C38) 

 Tsinania dictys (C56) 

 Tsinania sp. undt. (C 54) 



The fauna of the upper portion of the Ch'au-mi-tien limestone 

 is best represented from 50 to 75 feet (15 to 23 m.) below the sum- 

 mit of the limestone. It contains a characteristic grouping of genera 

 and species, as follows : 



Obolus damesi (C64) 

 Eoorthis doris (C64) 

 Eoorthis kayseri (C64, C68, 

 Eoorthis linnarssoni (C64) 

 Huenella orientalis (C64) 

 Syntrophia orthia (C64) 

 Billingsella pumpellyi (C36) 

 Pelagiella clytia (C47) 

 Hyolithes daphnis (C64) 

 Orthotheca cyrene (C47, C64) 

 Coosia ? bianos (C64) 

 Anomocare sp. (C64) 

 Anomocarella bauds (C36) 

 Anomocarella ? sp. undt. (CS 



Ptychaspis acamns (C45) 

 Ptychaspis baubo (C64) 

 C74) Ptychaspis bella (C 74) 



Ptychaspis cacus ( C 64) 

 Ptychaspis callisto (C64) 

 Ptychaspis calyce (C64) 

 Ptychaspis ceto (C45, C64) 

 Ptychaspis sp. undt. (C64) 

 Ptychaspis sp. (C47, C 50) 

 Chuangia batia (C64) 

 Chuangia nais (C64) 

 Solenopleura beroe (C64) 

 Tsinania sp. undt. ( 45) 



The stratigraphic range of the genera of the Upper Cambrian in 

 China is shown by the following table [p. 69]. Of the 27 genera in 

 the table all occur in the Cambrian of North America, with the pos- 

 sible exception of Chuangia. 



The Upper Cambrian fauna of China is characterized by genera 

 that are well developed in the same fauna in North America. The 

 genus Ptychaspis is particularly prominent in species and numbers 

 in the Upper Cambrian both in China and America. Tsinania is 

 represented by four species in the central portion of the Ch'au-mi- 

 tien limestone and one at the upper horizon. In America it is found 



