THE; CAMBRIAN FAUNAS. 7 



I have identified the above-listed fossils as follows : 



(a) Anomocare speciosum Lorenz = Anomocarella speciosa (Lorenz) 



Bathyuriscus asiaticus Lorenz = Dolichometopus deois Walcott 



Agnostus fallax Linnarsson A. chinensis Dames 



Agnostus parvifrons latelimbatiis Lorenz - = A. latelimbatus (Lorenz) 

 Acrothele granulala Linnarsson = Acrothele matthewi eryx Walcott 



(b) Teinistion (?) sp. = Damesella cf . blackwelderi Walcott 



Drepanura (/) sp. = Damesella cf . blackwelderi Walcott 



(c) Shantungia buchruckeri Lorenz = Chuangia nit id a Walcott 



Liostracus latus Lorenz = L. latus Lorenz 



By comparison with the sections of Messrs. Willis and Blackwelder 

 fauna (a) is located in the lower portion of the Kiu-lung group at about the 

 same horizon as the fauna from Lai-wu; fauna (b) represents the zone of 

 Damesella blackwelderi Walcott, which occurs in the central part of the Kiu- 

 lung group; and fauna (c), or the upper fauna, may be assigned to the upper 

 limestone of the Kiu-lung group, where the Upper Cambrian fauna is well 

 developed. 1 



At the locality of Tai-shan south of Tsi-nan Doctor Lorenz found frag- 

 ments of a trilobite that he named Lioparia blantoeides, which I have iden- 

 tified as Anomocarella bauds Walcott, which occurs near the summit of the 

 Upper Cambrian Ch'au-mi-tien limestone. 



At the locality of Tsing-tshou-fu he reports the following: 2 



Lioparia latelimbata (Dames) Obolella nitida n. sp. 3 



Shantungia crassa n. g. and sp. Orthis sp. 



A not closely definable brachiopocl Acrothele sp. 



My identification of the fauna is as follows: 



Lioparia latelimbata (Dames) Lorenz = Anomocare latelimbatum Dames 



Shantungia monkei Lorenz = Pagodia monkel (Lorenz) 



Obolella gracilis Lorenz = cf . Obolus obscunis Walcott 



Orthis sp. and Acrothele sp. 



I do not find any statement of Doctor Lorenz that the species enumer- 

 ated by him were found in association. They do not appear to have come 

 from the same stratigraphic horizon. Pogodia unnikci (Lorenz) is essentially 

 an Upper Cambrian type, while Aiiomocare latclinibatniu Dames is from the 

 Middle Cambrian. 



I have not attempted to follow the classification of the trilobites given 

 by Doctor Lorenz which is largely based on the division of the shell structure 

 into non-porous (dense) and porous. The mineralization of most of the speci- 

 mens is such that it is often impracticable to determine with any degree of 

 satisfaction whether the shell is non-porous (dense) or porous. 



By the courtesy of Dr. W. Deecke, of the Geological Institute of the 

 University of Freiburg, I received eight pieces of the rock containing original 



'Willis and Blackwelder, 1905, pp. 23, 41. 'Lorenz, 1906, p. 95. 



'This is described as Obolella gracilis n. sp., on p. 88 of Lorenz, 1906. 



