NO. I CAMBRIAN FAUNAS OF EASTERN ASIA 7 



those of Scandinavia and America, but the general appearance of 

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

 age proven. He further states that the age of the rocks containing 

 Dorypyge richtliofcni, from Wu-lo-pu, is probably the same as that 

 of the Quebec group, basing this upon comparisons with species 

 from Utah, which he referred to the genus Dorypyge.^ 



The collections made by the Carnegie Institution of Washington 

 Expedition prove that Dorypyge richthofeni occurs in the central 

 and upper portion of the Ch'ang-hia formation and is of Middle 

 Cambrian age. Baron von Richtho fen's means of comparison were 

 with the fauna referred to the Quebec group which was at that time 

 supposed to be of Lower Silurian (Ordovician) age. 



Dr. C. Gottsche, in 1886, called attention to the presence of Cam- 

 brian rocks and fossils in northwestern Korea, south of Wi-won. 

 He published a geological section and identified Anomocare planum 

 Dames, Anomocare majiis Dames, Dorypyge richthofeni Dames, and 

 Lingulella cf. nathorsti Linnarsson. He also mentions the genera 

 Theca, Orthis, Lingulella (two species), Agnostus, Conocephalites, 

 Crepicephalus, and F Remopleurides, and correlates the formation 

 with that of the " Andrarum limestone " of Scandinavia." 



In 1899 M. Bergeron ' described the following Cambrian fossils 

 from shaly limestones collected in the province of Shan-tung, China : 



Agnostus douvillei Arthricocephalus chauveaui 



Olenoides leblanci Dicellocephalus ? sinensis 



Drepanura premesnili Calynimene ? sinensis 



Of the above we have identified the following from the Ku-shan 

 shale of the section made by Mr. Blackwelder: 



Agnostus douvillei Dicellocephalus ? sinensis ^ Stcphanocare 



Olenoides leblanci Calymmene ? sinensis =■■ Blackwelderia 



Drepanura premesnili 



From the Cambrian formations of Siberia, Dr. Fr. Schmidt^ de- 

 scribed the f ollowins: fossils : 



^ China, von Richthofen, 1883, Vol. 4, Palseontologischer Theil, i. Abhand., 

 PP- 31-33. pis. I, 2 : Cambrische Trilobiten von Liau-tung. 



' Gottsche, C. Sitzungsberichte der koniglich preussischen • Akademie der 

 Wissenschaften zu Berhn, 1886, zw. halb-bd. (June-Dec), pp. 865, 867: Geo- 

 logische Skizze von Korea. 



^ Bull. Soc. geol. France, 3d ser.. Vol. 17, 1889, Paris, Notes paleontologiques, 

 pp. 499-516. 



* Melanges physiques et chimiques tires du Bulletin de I'Academie imperiale 

 des Sciences de St. Petersbourg, Vol. 12, 1886, pp. 407-424: Ueber einige neue 

 ostsibirischen Trilobiten und verwandte Thierformen. 



