IX 
NOTE ON THE STKATIGRAPIIY OE THE EISll-llEARINTx mm 
OF THE TALURAOAR ]{JVER. 
On receipt of the maniiscri])t and plates of tlie accompanying Memoir ])v 
Mr. A. S. Woodward, and while it was in the printer’s hands, we decided to 
visit the locality where the fossils were obtained with a view of determining 
their geological horizon. As stated by Mr. AVoodward in the introductory 
])art of this Memoir, Air. AA'illiam Anderson, late of the Geological Survey of 
New South AVales, was unable at the time of his visit to arrive at a definite 
opinion on this subject, though at the conclusion of his paper^ he states : 
“ I am inclined to think that what little stratigraphical evidence there is 
points to the conclusion that they form an isolated lenticular patch in the 
horizontally bedded sandstones similar to the lenticular beds of grey shale 
wliich occur in the Ilawkesbury Sandstone near the coast.” He therefore 
infers that they may be of Ilawkesbury or Triassic age, and consequently 
perha])s homotaxial with the fish-bearing horizon at Gosford, between Sydney 
and Neweastle. AVe accordingly spent several days last April in making a 
geological examination of the immediate site of the discovery, as well as of 
the surrounding country, and the residts are given in this note, and are 
illustrated in the accompanying sketch map and sections. 
Near Gulgong the older rocks are chiefly argillites and felspathic 
quartzites, perhaps of Silurian age, intruded by granites and diorites. Between 
Gulgong and Cockabutta ’Mountain the country for about the first ten miles 
is flat or slightly undulating, the superficial deposits being chiefly Post- 
Tertiary sediments with an occasional slicet of Pliocene basalt. Loav hills of 
granite succeed, and the road gradually rises until at “ Barney’s Beef,” about 
thirteen juiles from Gulgong, dark grey carbonaceous shales outcrop, dipping 
at a high angle. Impressions of Verl ehraria are almndant in these shales, 
])roving them to belong to the Permo-Car1)oniferous System, andprobably to the 
Upper Coal Aleasures (Newcastle Series). Their high inclination is most likely 
due to loeal faulting, as elsewhere in the district the Permo-Carboniferous rocks 
are seen to be only slightly inclined. At about eighteen miles northerly from 
^ W. Aticlerson, “On the Str.atigrapliieal Position of the Fisli and Plant-liearing Beds on tlie Talhragar 
River, Cassilis District, N. S. Wales,” Records Ueol. Survey N. S. ^Vales, 1S89, 1, pp. 137-139, pi. Xl\’. 
B 
