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



and next glaciation, Branxton, below, represented by about 

 900 feet of marine strata; time interval between the 

 Branxton and the Eurydesma cordatum horizon, below, 

 represented by 3500 feet of marine sediment, and 300 feet of 

 Goal-Measures. 



Uralian (Upper Carboniferous), (b) Eurydesma cordatum 

 horizon with fluvio-glacial conglomerates. The time 

 iuterval from the Eurydesma cordatum beds to the top 

 tilliteof the Kuttung at Lochinvar is represented by about 

 2400 feet of marine strata; that is, there is a total of 6900 

 feet of marine beds, and 300 feet of Greta Goal-Measures 

 separating the Bolwarra glacial beds of the Upper Marine 

 Series from the topmost tillite of the Kuttung series, and 

 a total of no less than 9800 feet of strata between the 

 Bolwarra glacial beds and the lowest glacial bed of the 

 Kuttung series. 



(a) Pre-Greta Tillites of Lochinvar, Macleay River in New 

 South Wales, Wynyard in Tasmania, Bacchus Marsh, Vic- 

 toria, Hallett's Cove and Inman Valley, South Australia, 

 Irwin and Gascoyne area, West Australia — possible dis- 

 conformity. 



Middle Carboniferous or Culm lower glacial deposits of 

 Kuttung Series, New South Wales associated with Rha- 

 copteris. 



12. From all the evidence quoted from Australia and 

 elsewhere it would seem that the following conclusions 

 may be provisionally adopted: — The great tectonic revolu- 

 tion known to the American geologists as the Ouachita 

 disturbance, of which the probable equivalent in Europe 

 was the late Culm or Post-Culm revolution, was part of a 

 world wide diastrophism. 



It initiated the building of great mountain chains. 

 Already in early Middle Carboniferous time in New South 



