202 



from this locality ; Frrcii who examined one of the specimens which is figured 

 on PI. XXIV, of this paper, recognised the Lower Carboniferous age of the 

 fossiliferous rock. Hayasaka confirms this specific identification and ex- 

 presses the opinion that the examples show certain features peculiar only to 

 those derived from the Lower Carboniferous and Devonian. On the other 

 hand, a number of specimens of Prodiictus from Gai-kia-ping,^^ SE of Wei-ning, 

 which Frech identified with P. giganteus, do not belong according to Hayasaka 

 to the Lower Carboniferous species, but represent a form closely allied to P. 

 yunnancnsis Loczv of a much younger geological age. 



15. In the province of Yun-nan, Lower Carboniferous rocks are well deve- 

 loped ; the annexed list compiled by Depr.vi^^ shows their distribution, 

 the order of their succession and their fossil contents. 



Region of the upper Blue 

 river, Environs of Yi-leang,'*) 

 of Yi-longO etc. 



Region of Lonan and 

 Pc-slii. 



Region of Hoa-keuou.6) 



h V. Limestone of Toii-mou- 







nyi*) with 







Alar/inia glabra 







Productiis corn 







Orthotlietes crenistria 







Eiidolliyra crassa 







IV. Black calcschists of Hoa-keuou, of Chan-keuou,^) of 

 je-chouei-tang9) with 



C/iotie/es papUioncuea 

 Prodmtus striatum 



h III. Yellow marl shale of 

 Hoa-keuou with 



GlypJiioceras 

 Avkulopecten Jupontesi 

 Productella spiniilosa 

 Polypora sp. 



II. b, Brown calcschist of 

 Tien-sen-kouang9) et Lo-a- 

 tien l') with 



Productits iiria/us 

 Mourtonia cayeuxi 

 Euomphahis cro.'aloslomiis 

 NalicoPsis neritinoides 



1) Gai-kia-ping= 'SiMM 



2) Dei kat et Mansuy : Etude geologique du Yun-nan oriental, i partie. Deprai : Geologie 



generale. igi2. p. 102. 3) Yi-!eang = g^ 4) Yi-long = g^ 



5) Hoa-keuou = 6) Tou-mou-nyi = 1 , . 



, „, , „> , , . > .T,. , JChinese characters unknown. 



7) Chai>keuou= 8) Je-chouei-tang= 9) 1 ien-sen-kouang=J 



