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QN THE TERTIARY DEPOSITS OF AUSTRALIA. 75 
The tertiary beds are found almost univ oan unless where 
interrupted by the volcanic rocks, granite hills, or islands, as we 
_ may call them, until the Great South Australian chain or Adelaide 
Range is reached. They are, however, very much c oaeeren near 
— eem to me as older than even the Western Port beds; 
but my opportunities for examination were verylimited. Professor 
Tate informs me that he has found characteristic apes mesozoic 
fossils among them, though he regards the beds as t 
I find ng at a meeting of the Geological Society of Leiaden: 
February 7, 1877, a paper was read from Professor ‘Tate, on new 
species of Belemnites and Salenia, from the middle tertiaries of 
a —o fossils were named by him JB. senescens 
and S. tertiaria. were obtained at Aldinga, where, he said, 
the fossile one for the "most pce identical = those of the 
M nec was hithert supposed to be 
extinct, and a paaeran c form. tar a living species 
had been dredged up by t * Challenger zi Int aes 
upon the interest attached to ba cana of this -Hélemaite, 
which added another to - curious examples of the survival of 
older forms of life in Australia. He thought it could hardly 
have been derived from secondary strata. The Salenia was evi- 
dently tertiary, and, as it was somewhat cretaceous in its aspect, 
