109 



Terebratula subcarnea, Tate. 



"Waldheimia insoluta, Tate. Lower Aldinga series. 



Upper Eocene, New Zealand. 

 Terebratulina triangularis, Tate. Lower Aldinga series. 



Ketepora sp. Lower Aldinga series. 



L. & M. Murravian, Eiver Murray ; 

 Mount Gambier. 

 Cidaris Australia, Duncan. Throughout Older Tertiary, passim. 



Salenia tertiaria, Tate. Lower Aldinga. 



Echinus Woodsi, Laube. Lower Aldinga ; L. & M. Murravian. 



Eupatagus coranguinum, Tate. Lower Aldinga. 



Cobrelatio>~. — Of the total of twelve species in the chalky 

 rock, ten are well known f otitis in the lowest Tertiary strata 

 on the shores of St. Vincent's Gulf, which, as I hare stated 

 elsewhere (Proc. Phil. Soc. Adelaide, 1878, p. 122), should be 

 placed at a lower horizon than the Lower Murravian. The 

 only other exposure of rock at all resembling the white lime- 

 stone of the Bunda cliffs is that occupying the shore of Mac- 

 Donnell Bay. between the township and Cape jSTorthumberland, 

 which also contains flint layers and erect Paramoudra-like 

 masses of flint, comparable in size and shape with those of 

 Antrim, though they exhibit occasionally a somewhat aborescent 

 form, foreign to the Irish specimens. I have no fossils from 

 the MacDonnell Bay stratum. But passing inland, we find at 

 Mount Gambier white, rather granular, limestone, coarser in 

 texture, but containing flint layers. The Mount Gambier bed 

 contains a good many of the fossils characteristic of the Lower 

 Aldinga series, whilst a higher horizon seems to be attained in 

 the yellow polyzoal rock of the Mosquito Plains at Xarracoorte. 

 Indeed, the sequence of deposits as determined by fossils 

 and lithological characters would appear to be the same in 

 the south-east as in the Bunda Plateau, excepting that the 

 crystalline limestone of the latter does not exist in the former 

 area. 



The Bev. J. E. T. "Woods says that " all fossils I have seen from 

 these beds [of the Australian Bight] have been familiar forms 

 from Victorian or South Australian beds. I should imagine, 

 from the description of the beds themselves and the fossils 

 submitted to me that they were nearer to the Mount Grambier 

 formation than those of the Eiver Murray." (Trans. E. S., 

 J$.S.~W., 1877.)* So far we are in accord, but we are not 

 agreed as to the relative position of the Mount Grambier beds. 

 In 1865 he referred them to the Older Pliocene, placing the 

 Murray beds as Upper Miocene (vide Phil. Soc, Adelaide, 



* Mr. Woods, in a letter dated August, 1879, writes : — " The fossils I saw 

 from the Bight were entirely like those of the Murray Cliffs in character — a 

 yellowish limestone, and the fossils mostly in casts. I recognised in them a 

 few Mount Gambier forms." His remarks, therefore, apply only to the top 

 limestone of the Bunda Plateau. 



