522 Transactions. — Geology. 



Marawhenua. 



From the glauconitic greensands at the base of the 

 Waitaki Stone, a mile and a half east of this place, in the 

 cliffs facing the railway - line, I collected the following 

 forms : — 



1. Kekenodon onomata, Hector. 



2. Cirsotrema lyrata, Zittel. 



3. Cassidaria senex, Hutton. 



4. Teredo heaphyi, Zittel. 



5. Plagiostoma Icevigata, Hutton. 



6. Lima palceta, Hutton. 



7. Pseudamussium huttoni, Park. 



8. TercbrateUa gaulteri, Morris. 



9. Terebratclla furculifera, Tate. 



10. Terebratula oamarutica, Boehm. 



11. Bouchardia tapirina, Hutton. 

 Graphularia (15 in. long). 

 Balanus. 



Corals. 



The fine pecten Pseudamussium huttoni occurs in great 

 numbers, in a fine state of preservation, and easily extracted. 

 The brachiopods occur in thousands. The fossils and strati- 

 graphy clearly correlate these beds with the Mount Brown 

 and Kakanui limestones. 



Whabekuki Basin. 



Stratigraphy . 



There are five well-marked fossiliferous horizons in this 

 basin, which enable the Tertiaries there to be subdivided as 

 follows : — 



Waitaki Stone .. 1. Calcareous sandstone. 



2. Soft ca'careous sandstone and shelly sands, often 

 glauconitic, with Kekenodon. 



3. Greensand, calcareous, often dark-green, with 

 Atnria, &c. 



[4. Bluish-green and grey sandstones and sandy 

 Waihao beds . . \ clays. 



(5. Quartzose grits and brown coal. 



There is no limestone in Wharekuri basin corresponding 

 to the Oamaru building-stone proper. Beds 1 and 2 corre- 

 spond closely in their fossil contents with the fossiliferous 

 calcareous horizons below the Waitaki Stone at Kakanui. 

 Bed 2 underlies No. 1 conformably, and contains a large 

 number of fossils, many of which are found in bed 1. 



Mr. McKay* in 1881 referred bed 1 partly to the Hut- 



• Reports Geol. Expls., 1881, pp. 68 and 103. 



Mount Brown beds 



