.i'3 



Surely Devonian, probably Middle ? 



17) Yang-liu-shu,^^ Ta-kuan-ting, prov. Yun-nan (Yamada Coll.) 

 Favositcs astcrisciis Frech 



CyathopJiyllinn doiivillci Frech var. sinensis Yabe and Hayasaka 

 Middle Devonian. 



18) Chi-li-pu,"' Ta-kuan-ting, prov. Yun-nan. 

 Favositcs g'oldfiissi ^.-YAr^ . et H. 



Middle Devonian. 



In the present material, therefore, there are no fossils indicating the 

 Lower Devonian age, unless the Tentaculitcs rock from Shuan-chin-tang may 

 represent this age. On the other hand, the Middle Devonian rocks are re- 

 presented by their coral and brachiopoda faunas, and the Upper Devonian 

 mostly by brachiopoda fauna. Very few forms of these faunas are found to be 

 new to science, the greater part belonging to cosmopolitan types. 



Thallophyta. 

 Corallinaceae. 



Solenopora, Dybowski. 

 Solenopora ? ? sp. 

 PI. XXI., Fig. 7. 



The figure shows a part of a small calcareous body in thin section and 

 under high magnification ; it appears as if composed of numerous, closely set,, 

 fine calcareous filaments, in parallel orientation. The filaments are all of the 

 same breadth and uniform throughout their whole length (0.025 mm. broad). 

 Owing the recrystallization there is preserved no trace of septa-like 

 structure in the section ; it is a question whether such was absent from the 

 body from the beginning. It is, however, very likely that the body was 

 not primarily an aggregate of calcareous filaments, but of calcareous tubes, 



1) Yang-liu-shu = ^Dp^ 



2) Ch:-Ii-pu = *^IJ^ 



