18 RESEARCH IN CHINA. 
CHINESE LocALITIES—Continued. 
C16. About same horizon as C15 and C27. 
Lower Cambrian: Slaty black limestone in the lower part of the Man-t’o shale [Black- 
welder, 19074, p. 26, third paragraph; and fig. 6 (bed 7), p. 25], 2 miles (3.2 km.) 
south of Ch’ang-hia, Shan-tung. 
Two species, Redlichia chinensis and Redlichia sp. undt. 
C17. About 180 feet below C23, same section; about 35 feet above C20, adjacent sections; 
about 160 feet below C 28, adjacent sections. 
Lower Cambrian: Ferruginous limestone nodules in the brown sandy shales at the top 
of the Man-t’o shale [Blackwelder, 19074, p.27 (list of fossils at top of page), and 
fig. 6 (bed 15), p. 25], at Ch’ang-hia, Shan-tung. 
Obolella asiatica Ptychoparia aclis Ptychoparia granosa Ptychoparia impar 
C18. Below horizon of C19, C22, C24, and C26, same section; above C21, same section. 
Middle Cambrian: Dark gray oolitic limestone about 400 feet (120 m.) above the base 
of the Ch’ang-hia limestone [Blackwelder, 19074, p. 33 (third list of fossils)], in 
cliffs 1 mile (1.6 km.) east of Ch’ang-hia, Shan-tung. 
Scenella clotho Helcionella rugosa orientalis Crepicephalus magnus 
Pelagiella chronus Crepicephalus damia Menocephalus acerius 
C19. About same horizon as C22, C24, and C26, same section; about same horizon as 
C25, different section. 
Middle Cambrian: Uppermost layers of the Ch’ang-hia limestone [Blackwelder, 
19074, p. 33, part of the last list of fossils], at Ch’ang-hia, Shan-tung. 
Dorypyge richthofent Menocephalus abderus Anomocarella tutia 
Damesella brevicaudata Anomocare daulis Dolichometopus deois 
Lisania belenus 
C20. About 15 feet above C31, same section; about 35 feet below C17, different section. 
Lower Cambrian: Central part of the Man-t’o shale formation [Blackwelder, 1907¢, 
p. 26 (last list of fossils) and fig. 6 (bed 14), p. 25], on the west side of an isolated 
butte 1 mile (1.6 km.) south of Ch’ang-hia, Shan-tung. 
Billingsella richthofeni Ptychoparia aclis Ptychoparia (Emmrichella) mantoensis 
C21. About 100 feet above C 30, different sections; about 100 feet below C18, same section. 
Middle Cambrian: Ocher-mottled phase of purple-gray limestone in the middle of the 
oolitic Ch’ang-hia formation [Blackwelder, 19074, p. 33 (second list of fossils)], 
at Ch’ang-hia, Shan-tung. 
Helcionella rugosa orientalis Crepicephalus damia Solenopleura sp. undt. 
(22. About same horizon as C19, C24, and C26, same section; above C18, same section. 
Middle Cambrian: Ch’ang-hia limestone in upper oolitic portion [Blackwelder, 19072, 
pp. 22 and 33 (part of the last list of fossils)], at Ch’ang-hia, Shan-tung. 
Acrotreta lisani Lisania bura Menocephalus admeta 
Hyolithes cybele Menocephalus acantha Anomocarella temenus 
Lisania alala 
C23. About 180 feet above C17, same section; about 25 feet above C 28, different section. 
Middle Cambrian: Upper part of thin-bedded gray oolitic limestone at the base of 
the Ch’ang-hia formation [Blackwelder, 19074, p. 32 (second list of fossils), and 
fig. 6 (bed 20), p. 25], 50 feet (15 m.) below the base of the cliffs 1 mile (1.6 km.) 
east-southeast of Ch’ang-hia, Shan-tung. This horizon is the fourth bed above 
the black line in the figure on page 25, the one opposite bed ‘‘20.”’ 
Acrothele vara Ptychoparia (Emmrichella) eriopia Agraulos abrota 
Orthotheca daulis Ptychoparia (Emmrichella) theano Anomocarella tatian 
