203 



Region of the upper Blue 

 river Environs of Yi-leang, 

 of Yi-long etc. 



I. Shell marl and marly 

 sandstone with 



Spirifer mbcouicus 

 Spiriferina insculpta 

 RItynchoiulla aitgitLxta 

 Orthis sp. 

 Proehts elliptiiiis 



Region of Lc-nan and 

 Po-shi 



h II. a. Red sandstone with- 

 out fossils and a marly shale 

 of Tien-sen-kouang, Lo-a- 

 tien. 



Region of Hoa-keuou 



One of the most interesting fossil faunas in the present material is that 

 collected by Mr. Y. Ishii from Hwang-tu-pu,'^ Chi-yang-hsien,"'*^ prov. Hu- 

 nan. The locality is in the southern part of the said province, a little north 

 of Yung-chou : hence it is in, or at least near, the district where the marine 

 Upper and Middle Devonian rocks are known to be extensively developed as 

 mentioned in the preceding chapter. Ishii's collection comprises, according 

 to H.4YASAKA, three species of brachiopoda which follow : 



Spirifer bisulcatns Sow. (abundant) 



Athyris royissii L'Eville. (abundant) 



Rkynclionella pleiirodon Phii.l. (rare) 



Of these fossils, the first is essentially a Lower Carboniferous species, 

 although it occurs also in the younger, Trogkofel beds of the Carnic Alps ; the 

 second possesses a more extensive vertical range, being known from the 

 Uppermost Devonian to the Permian ; and the third, which is also essentially 

 a Lower Carboniferous and L^ppermost Devonian species, is recorded from the 

 Upper Carboniferous of Moscow. The fauna, indeed, can be Uppermost De- 

 vonian or Lowier Carboniferous in age, and further detailed correlation is im- 

 possible on the material at hand. 



The aforementioned facts, seem to warrant us in concluding that the 

 marine Lower Carboniferous deposits are developed to a certain extent in the 



1) Hwang-tu-pu = ^±,^ 



2) Chi-yang-hsien = fP^!K(^:Hl©) 



