president's address. 583 



At Yetholme and at the limekilns near Batliurst Mr. Clunies 

 Ross. B.Sc, has lately described* a junction between the Upper 

 Devonian rocks and the limestone series near Bathurst, and he 

 considers the general evidence to show that there too the junction 

 is unconformable. Tlie U|)j)er series of the Carbonifero-Devonian 

 contains Lepidodendron austrah, which occurs in numbers along 

 certain horizons-. In the lower series Lepidodendron australe was 

 discovered for the first time by Mr. Clunies Rossf in Winburndale 

 Creek,! and by Mr. Pitfcman and the author at Mt. Lambie ; in 

 both cases the specimens were obtained from the horizon of the 

 Spirifera disjuncta sandstone. The marine series contains 

 Sp)irifera disjuncta in vast numbers, as well as Rhynchonella 

 pleurodoyi and Pteronites Pittmani. § These fossils occur in pro- 

 fusion both above and below the horizon where Lepidodendron 

 was found by Mr. Pittman and myself, and Spirifera disjuncta is 

 bedded in the same block with Lepidodendron australe (?) in Mr. 

 Clunies Ross' specimen. 



At Mt. Lambie and Winburndale Creek, therefore, there is 

 evidence to show that the land flora represented in Queensland in 

 Middle Devonian time by Dicranoph.ylliim was represented in 

 New South Wales in Carbonifero-Devonian time by early types 

 of Lepidodendron allied to L. australe. These Devonian rocks 

 near Mt. Lambie have been folded, the axes of folding striking 

 about N. 15° E. and S. 15° W. 



Near Capertee the axes of folding strike N. 40° W. 



* Read before Geological Society of London, November 8th, 1893. 

 Abstract given in Geol. Mag. No. 354. New Series. Decade III. Vol. x. 

 No. xii. pp. 573-574. 



iLoc. cit. 



% Also Proc. Aust. Assoc. Adv. Sci. 1892, iv. pp. 332-337. On the occur- 

 rence of Lepidodendron near Bathurst, N.S.W., by W. J. Clunies Ross, 

 B.Sc, F.G.S., &c. 



§ Records Geol. Survey New South Wales, Vol. iii. Pt. iv. 1893, p. 199. 

 On the occurrence of Lepidodendron australe (?) in the Devonian rocks of 

 New South Wales, by T. W. E. David and E. F. Pittman, with plates 



XVII. -XIX. 



40 



