Park. — Marine Tertiaries of Otago and Canterbury. 539 



relations of the two formations. Fig. 14 shows the general 

 arrangement of the beds exposed in the bank on the west side 

 of the cutting : — 



tSLE". 



aw. 



Section from 43 m. 3 ch. to 43 m. 9 ch., looking towards Weka Pass 



Creek. 



1. Shelly sands. 2. Brown sands. 3. Shell-bed. 4. Sands. 5. Pebbly 

 shell-bed. 6. Sands. 7. Pale-greenish-coloured sands. 8. Coralline 

 limestone. 9. Brown sandstone with calcareous layers. 



Beds 1 to 7 are the Motanau beds ; 8 and 9 the upper 

 horizons of the Mount Brown beds. At point a the coralline 



cutting is 



At b the 



beds rise in the bank to a height of 7 ft 

 about 20 ft. high, and at c about 26 ft. 



From bed 8, which is a coralline crag, I collected the 

 following forms : — 



1. Ostrea ivullerstorfi, Zittel. 



2. Pecten hutchinsoni, Hutton. 



3. Pecten beethami, Hutton. 



4. Pecten, 2 sp. nov. 



5. Lima paleata, Hutton. 



6. Plagiostoma Icevigata, Hutton. 



7. Dosima greyi, Zittel. 



8. Magellania novara, Jhering. 



9. Magellania sufflata, Hutton. 



10. Magellania parki, Hutton. 



11. BhyucJionella nigricans, Sowerby. 



12. Meoma crawfordi. 

 Balanus. 



Corals and Cidaris spines in great abundance. 



Many of these fossils distinguish the highest fossiliferous 

 horizon underlying the Oamaru Stone in North Otago. 



On passing through the cutting just described, and shown 

 in fig. 14, the line crosses a gully excavated in soft brown 

 sandstones, which are best seen on the back of Mount Donald, 

 a short distance to the north. 



Before reaching the 44rmile post the line passes through a 

 heavy cutting in the rubbly impure limestones and sandstones 

 which form the crown of Mount Donald, whence they descend 



