The Coal Measures. 
203 
dant. Shells strewed the old beaches in apparently end- 
less profusion. Nautilus and Orthoceras floated then 
multi-chambered shells on the surface of the sea, and 
crustaceans and trilobites shoaled amongst the rocks. 
Fishes existed also, although up to the present very 
few of their remains have been found in Australia. 
Fig. 54. — A vicuhpeclen limwformi Morris. An Upper Palaeozoic 
Fossil found at Norfolk Plains (Tas. ), Crympie (Q.), and 
Wollongong (N.S. Wales). 
It must not be forgotten, though, that the many 
thousand feet of stratified rocks deposited to form the 
Permo-Carboniferous had to be carried by running 
water from elsewhere. If we look around, we can see 
the quarries where the material used to build our city 
was excavated. Every cubic yard of masonry means 
a cubic yard less at the quarry. There were hills all 
1 fetrzeleeki’s New South Wales and Van Diemen** Land, Plate xiii., Jj'ig, 1. 
