CHAPTER XXVIII. 
THE TEIAS-JURA SYSTEM— conYiweA 
THE IPSWIOH EORMATION (UPPER TRIAS-JURA), OUTSIDE OP THE TYPE 
DISTRICT. 
Includinq- Stewaet’s CfiEEK (Rockhampton), anb Rosewoob anb Wtcaebah (Rockhampton) 
Bebs. 
A TEKY remarkable deposit occurs between the Central Railway at Stanwell and 
Mount Lyon. A vast scries of bedded basaltic rocks is here met with, having a slight 
general dip to the north. Between, and beneath the beds of basalt, dark carbonaceous 
shales, thin seams of impure coal, and beds of sandstone occasionally crop out. One bed of 
ferruginous sandstone, near Mr. Lawrence’s Homestead on Stewart s Creek,* to which I 
was guided by Captain Christoe in ISSo, is full of well-preserved plant-remains. 
At Wycarbah Railway Station, twenty-four miles from Rockhampton, a hard fine- 
grained volcanic tuff is associated with the basaltic rocks. This tulf contains numerous 
fern-impressions. The late Rev. J. E. Tenison Woods referred to the fossils of this 
deposit t “a.s being of great interest, showing a relation with certain Mesozoic plant-beds 
of India, which have never hitherto been identified outside that country. 
In his “ Eossil Elora ” the same Author referred (pp. 20, 45, 113, and 125) to plant- 
beds at Rosewood, West of Rockhampton, J containing Ptilophyllum oligoneiiruni Ten. 
Woods, Vertflraria towarrensis, Ten. Woods, Sequoiites australis, Ten. Woods, 
Pecopteris, and Eqitisetmn. 
In my “Handbook of Queensland Geology” (1885), I fell into a mistake in 
understanding Mr. Tenison Woods to refer, ih his Report to the Minister for Lands 
certain stratified deposits met with in the first twenty miles of the railway west of 
Rockhampton (or more correctly from six to twenty miles), “containing marine shells 
of well-known species found in the Lower Carboniferous rocks of Europe,” to the same 
deposit as the Stewart’s Creek (Rockhampton) Beds. In the same “ Handbook ’ I quoted 
Glossopieris as occurring in the Stewart’s Creek Beds ; but the fossil in question, having 
since been submitted to my Colleague, was pronounced to be not Glossopferts, but a 
species of Phyllopteris. 
Considerable collections of plants have, since 1885, been made by the late Mr. 
•Tamos Smith and myself from the Stewart’s Creek, Rosewood, and Wycarbah beds. 
There seems to be no reason why all the Mesozoic deposits within this limited district 
should not be massed together and treated as a whole; and, in consideration of the 
great similarity of their organic remains, I refer them to the Ipswich Eormation, 
although I was at one time strongly inclined to regard the Stewart’s Creek, &e. (Rock- 
hampton) Beds, as occupying a lower horizon than the Ipswich Beds, and as, iii tact, 
bridging over at least a part of the gap between the latter and the Burruin Coa 
Measures. 
* Not to be confounded with Stewart’s Creek, Townsville, where 
t In a Report to the Minister for Lands, dated 7th August, 188.3, published in the Quecmlandei JSews 
paper. 
t Not to be confounded with Rosewood, near Ipswich. 
