360 
cha acter also sliow that greab physical changes must have taken place, for they con- 
sist chiefly of argillaceous shales, which are in striking contrast with the thick-bedded 
arenaceous rocks underlying them. The fine sediment which formed the Wiannamatta 
shales evidently settled down in the quiet waters of a lake.” 
Both the Ilawkeshnry and the Wianamatta Beds contain plants which are 
common in the 1 pswieh Formation and in the Clarence Beds, and both contain, in addition, 
remarkable deposits of fish remains,* of which the Ipswich and Clarence Beds have, so 
iar as I a.ru aware, as yet furnished no equivalent. 
As for the last two years the Stratigraphy and Palreontology of the Mesozoic rocks 
of New South Wales have been closely studied by the late Mr. C. S. Wilkinsou, Mr. 
(now Professor) T. W. Edgeworth David, and my Colleague, we are enabled to give the 
latest views of the Groological Survey in the following concise table f : — 
Thickness. 
Feet. 
- 
70 : 1 . 
1 , 00 :). 
Triassio 7 
? 
800 . 
Tasniopteris beds of Talbragar River, and part of the Clarence District. 
Wianamatta Shales, with Macrotmniopteris, Thinnfeldia, &c. 
Hawkesbury Sandstone, with Thinnfeldia, Palmoniscus, Platiceps 
Wilhinsoni, &c. 
Balllmore Beds. 
Narrabeea Shales, with Thinnfeldia, and Estheria and intercalated 
cupriferous tuffs. 
In Victoria, Mr. Reginald A. E. Murray, following Mr. Wilkinson, accepts J 
the Carbonaceous (? Oolitic) rocks of the Wannon, Cape Otway, AVestern Port, and 
South Grippslaud as the equivalent of the Clarence River Beds, and the Bacchus Marsh 
Sandstones as the equivalent of the Hawkesbury Sandstones, there being no recognised 
equivalent of the AVianamatta Beds. The “ Carbonaceous (? Oolitic) rocks ” contain 
Za mites {Podnzamites) Barklyi, McCoy; Zamites (Podosamites') ellipticus, McCoy; 
Zamites lonqifolins, McCoy ; Tceniopteris Daintreei, McCoy; and Alethopteris {Pecopteris) 
australis, Morris, whose nearest European ally is Pecopteris scarburgensis, Bean, AIS. 
as determined by Prof. Sir F. McCoy.§ 
In Tasmania “ tlie rocks of Mesozoic age consist mainly of variegated sandstones, 
shales, blue and white clays, often of great thickness, and extending throughout the 
midland, southern, and south-eastern districts. They frequently contain seams of coal, 
sometimes, as in the Fingal District, of great thickness and of fair quality. The beds 
of the system are distributed in distinct basins, often greatly disturbed and broken up 
by intrusive dykes of greenstone, and on this account, and because of the great sameness 
of plant-remains, there is great difficulty in attempting to break up the beds 
of the system into subdivisions. The bods probably cover the whole period from 
the close of the Upper Paheozoic Coal Measures to the beginning of the Tertiary 
Period. No marine deposits break the sequence, as in Queensland. The great Lignite 
and Leaf Bed Series (Palaeogene) with leaves of oaks, elms, laurels, beech, cinnamon, 
and other trees, generally overlie the Mesozoic members in the Launceston Tertiary 
Basin.” 
The “ Upper (Mesozoic) Coal Measures” are developed at Derwent, Jerusalem, 
Fingal, Longford, Hamilton, Spring Bay, Port Cygnet Basins, &c. An “ Older Sand- 
* See Memoirs of the Geological Survey of New South Wales, Pal., No. 4. “Tho Fossil Fishes of 
the Hawkesbury Series at Gosford.” By Arthur Smith Woodward, F.Z.S., F.G.S. Sydney : by Authority: 
1890. 
t A Correlation of the Coalfield.? of New South Wales. By T. W. F. D,avid, B.A., F.G.S. Prne. 
Audr. Assor. Adr. Sci., Vol. ii., 1890, p. 464. 
t Geology and Physical Geography of Victoria. Melbourne : by Authority : 1887. 
g Prodroraus of the Paleontology of Victoria, Decade i., 1874, and Decade ii., 187.5. 
