REPORT ON UPPER PALEOZOIC FOSSILS FROM CHINA. 303 
tance to the absolute break or change which divides them. It would hardly 
be warranted, on this evidence alone, to decide that the fauna under con- 
sideration is older than the Upper Carboniferous, although I believe this to 
be the case. On the other hand, the presence of the genus Spirzfer fixes the 
age of this fauna as post-Ordovician. It is impossible to state positively, 
however, whether it is Upper Silurian, Devonian, or Lower Carboniferous. 
As well-characterized Devonian faunas having nothing in common with this 
are known in China, the chances are lessened for its being Devonian. The 
evidence of the Bryozoa is indicative of an age corresponding to the American 
Mississippian, but the brachiopods are unlike those of any Mississippian 
fauna known to me. This group of fossils seems to me rather to recall 
Silurian types, and this impression is in some measure borne out by certain 
resemblances to Silurian forms from China, especially those from Tshau-tién, 
figured by Kayser, although it can hardly be claimed that the species are 
identically the same in a single instance. I may say in this connection that 
as my own knowledge of the Bryozoa is as yet but slight, I have received 
valuable advice from Mr. R. S. Bassler, of the United States National 
Museum, regarding those of the present collection. 
I am also a debtor to Mr. Willis and to Mr. Blackwelder for references 
to literature and for many helpful suggestions, not to mention the interesting 
collections which I have been privileged to study. 
REGISTER OF LOCALITIES. 
1. Two miles (3.2 km.) north of Ta-ning-hién, East Ssi-chu’an. In black limestone and 
calcareous green sandstone at base of the Canyon limestone. 
. Two miles (3.2 km.) more or less north of Ta-ning-hién, East Ssi-chu’an. Bottom of 
the massive Canyon limestone at contact with the green shales. 
3. Two miles (3.2 km.) north of Ta-ning-hién, East Ssi-chu’an. In black limestone and 
calcareous green sandstone at base of the Canyon limestone. 
4. Three and one-half (5.6 km.) miles above Ta-ning-hién, East Ssi-chu’an. In axis of 
sharp anticline in the Canyon limestone. Near Yen-ch’ang. 
5. Seven miles (12.2 km.) south of Ta-ning-hién, East Ssi-chu’an. In gray limestone 
associated with calcareous shales lying upon the “‘red beds.” 
6. Two miles (3.2 km.) below Ta-miau-ssi, East Ssi-chu’an. In crystalline limestone, 
part of the thick series underlying the anthracite coal measures. 
7. One-half mile (0.8 km.) north of Liang-ho-k’ou, East Ssi-chu’an. At contact of the 
black cherty limestone with the green argillites. 
8. Two miles (3.2 km.) more or less below T'a-miau-ssi, East Ssi-chu’an. 
9g. Iwo miles (3.2 k.m) below Ta-miau-ssi, East Ssi-chu’an. 
16. Ta-ning-hién, East Ssi-chu’an. Near the middle of the thick Carboniferous (?) lime- 
stone. 
17. Tung-kuan-k’6u, East Ssi-chu’an. Above (?) an anthracite seam in the coal series. 
20. Y6n-yi-ssi. 20 miles (32 km.) north of Ho-chou, Shan-si. In dark bituminous lime- 
stone in the Shan-si (coal) series. Exact horizon unknown. Exposure in the main 
road one-fourth mile (0.4 km.) north of the village. 
59. One mile (1.6 km.) north-northeast of Ts’ai-kia-chuang (Tsing-ko-tschwang), Shan- 
tung. Strata resemble Ching-lung limestone. Fossils almost wholly in cherts or 
on weathered surfaces. In rubble over limestone outcrops 200 yards (182.8 m.) 
southwest of gneiss contact. 
69. One mile (1.6 km.) northwest of Yen-chuang, Shan-tung. Found in limestone block 
lying upon tailing pile of a deserted coal mine. 
No 
