10 



M. YOKOYAMA. 



Siliceous Sandstone, medium-grained, firm, with ^ 



fossil shells. 

 Siliceous Conglomerate, firm. 

 Clay and Sandy Shale, with fossil shells. 

 Crystalline Schists. 

 Porphyry. 



The plant-fossils occur in yellowish to dark-grey shaly sandstone 

 or sandy shale, and are excellently preserved. They were collected, 

 not in place shown in the section, hut very near the village of Hako- 

 gase, which is about 2 ri (8 kilom.) S.E. of Asahi. 



(5.) Tanimura (Prov. Echizen), lying on a road between the 

 town of Katsuyama in Echizen and Ushikubi on the Tetorigawa. It 

 is 6 ri (23 kilom.) south of Shimamura and 293 m. above the sea. 

 Here the system consists of 



a. Sandstone, argillaceous, dark and also highly micaceous, with 

 nodules of clay-iron-.'itone, and filled with Ostracoda; often with 

 intercalating layers of black carbonaceous shale with fossil -stems, 

 and of seams of coal. This is the plant-bed of the place, underlayed 



b. Sandstone and Conglomerate) the former of a whitish colour 

 and with indistinct prints of plants. 



This system at Ushigatani is directly overlaid by nearly horizon- 

 tal strata of Tertiary tuff to which an allusion has already been 

 made. (See page 6). 



(6.) Oltamigo (Prov. Hida), situated on the Shirakawa, about 

 1000 m, above the sen, and 5 ri (20 kilom.) east of Hakusan. Here 

 the fossil-bearing rock is dark highly sandy slate, often splitting into 

 thin plates. The fossils are for the most part splendidly preserved. 



(7.) Ushigatani (Prov. Hida), also on the Shirakawa, about 5 ri 



