CARBONIFEROUS AND PERMO-CARBONIFEROUS ROCKS, N.S.W. 301 



for sections) the upper limit is also given as a bed of con- 

 glomerate. It is assumed that the conglomerate bed is at 

 the base of the "Permo-Carboniferous" Lower Marine 

 Series, but this is not necessarily the case, for at the village 

 of Gosforth, four miles N.N.E. of Lochinvar, an interesting 

 series of marine fossils occurs apparently within a few feet 

 of the surface of the top bed of tillite. They have been 

 examined and identified by Mr. W. S. Dun, as follows : — 

 Orinoid stems, Fenestella internata, F. fossula, F. sp., 

 Semlnula sp. nov., Martiniopsis subradiata, Spirifer atf. 

 Tasmaniensls a small type probably transitional, Aviculo- 

 pecten Englehardti, A. tenuicollis, A. limceformis, (young 

 species) A. Mitchelli, Chaenomya sp., Conocardium sp.nov. 

 Moeonia sp. nov., Orthoceras sp, 



Mr. Dun considers these forms transitional between those 

 of the Burindi Series and those of the Lower Marine Permo- 

 Oarboniferous Series respectively. 



At Lochinvar marine fossils with plant stems not yet 

 determined occur within 60 feet vertically above the sur- 

 face of the top bed of tillite. 



Gangamopteris has been identified on two horizons 

 respectively, about 1300 and 1800 feet above the top tillite 

 bed of the Kuttung. As regards the question of angular 

 unconformity it may be noted that as shown on the section 

 Plate XXIII, the angle of dip from Winder's Hill to the 

 top bed of tillite is about 20°, while from the top tillite 

 of the Kuttung into Lochinvar township the dip lessens, 

 being at 15° to 16°. Both at Paterson and Seaham no such 

 difference in the dip between the strata of the lower Marine 

 Series and those of the Kuttung is observable. But at 

 Mount Bright near Pokolbin there is a strong unconformity 

 between the Rhacopteris shales, rhyolite tuffs and lavas of 

 the Kuttung Series and the Eurydesma cordatum beds of 

 the Lower Marine Series. There can be no question of a 



