330 C. A. SUSSMILCH AND T. W. E. DAVID. 



Permo-Oarboniferous, (b) but where movement has been 

 rapid as at the great anticline at Lochinvar there is evid- 

 ence for slight angular unconformity, the average dips of 

 the Kuttung being at about 20°, and those of the Permo- 

 Oarboniferous Greta Coal Seams at about 15°. (c) The 

 splitting of the Permo-Oarboniferous Greta Ooal Seams by 

 wedges of conglomerate whose thick ends point to the belt 

 of Kuttung Hills, suggests some disconformity between the 

 Kuttung and the "Permo-Oarboniferous" as developed 

 between Maitland and Lochinvar. (d) At Mount Bright^ 

 Pokolbin, 16 miles south-west of Maitland, there is distinct 

 unconformity between the Eurydesma cordatnm horizon 

 of the Lower Marine Series, and the lava and tuffs of the 

 Rhacopteris Series. 1 The geological map accompanying 

 the report quoted also shows strong disconformity between 

 the above two series. 



9. As regards the age of the "Permo-Oarboniferous" 

 tillites and their relations to the tillites and other glacial 

 deposits of the Kuttung, the following tentative suggestions 

 are made: — 



(a) It is chiefly by means of the Indian Permo-Oarboni- 

 ferous fauna and flora that a correlation of the Kuttung 

 and overlying Permo-Oarboniferous strata with European 

 and North American equivalents can be attempted. 



(b) The Indian "Permo-Oarboniferous" fauna is well 

 developed on the coastal areas of West Australia and in 

 Northern Territory between Darwin and the Victoria River,, 

 but a great land barrier extending from Darwin to south 

 of Adelaide separated the Eastern ("Pacific") Pernio- 

 Carboniferous types from the Indian fauna of the Western 

 half of Australia. (See map on Plate XXX.) 



(c) Much of the so-called Permo-Oarboniferous beds of 

 India and Australia are probably really Permian for (1) 



1 The Geology of the Hunter River Coal Measures, New South Wales,, 

 by T. W. E. David, plate viii. Geol. Surv. Dep. Mines. 



