1202 NOTES ON THE GEOLOGY OF BOWNING, N.S.W., 



West of this formation come what have been termed by Mr. 

 Jenkins the ' Murrumbidgee Beds/ which have been so designated 

 because a good section of them is visible at Cave Flat on the 

 Murrumbidgee; but in my opinion the name ' Coodradigbee River 

 Beds' would be more appropriate ; for nearly the whole course of 

 this river passes along these beds in the direction of their strike. 

 These beds are of interest because of their extent, and the likelihood 

 that they are of Devonian age. Indeed the discovery by Mr. Ratte 

 of the Australian Museum, of a portion of an Asterole^is, and certain 

 Ammonites and Nautili of Devonian character in collections 

 obtained from them, together with the fact pointed out by Mr. 

 Jenkins in his ' Geology of Yass Plains', that most of the fossils 

 recognised as Devonian types by De Koninck, and represented as 

 belonging to the Yass beds, really belong to the beds in question, 

 make their Devonian identity almost certain. Their occurrence 

 can be traced from Boorowa on the north, southward through. 

 Binalong, Mylora, Bookham, Cave Flat, and along the course of 

 Coodradigbee River (Little River, locally), for upwards of seventy 

 miles. 



Palceontological features. — Owing to the difficulty of getting 

 palseontological specimens identified in the colony, I am not, 

 in the present paper, able to give this branch the fulness of 

 treatment its importance requires ; but I hope shortly to be in a 

 position to give a complete list of the fossils which occur in the 

 Bowning series. At present my remarks will be confined to the 

 genera, and a few species that ha\e already been identified by 

 Professor De Koninck through the instrumentality of the late 

 Rev. W. B. Clarke, F.R.S., or whose identification is rendered 

 easy by their wide distribution. 



Up to the present no signs of terrestrial remains have been 

 discovered, and the only vegetable remains yet yielded are prints 

 of seaweed. 



A distinctive feature of the Bowning beds, especially the 

 Bowning side of the eastern division, is the number and beauty of 

 the remains of hydrozoa and of polyzoa, among which may be 



