290 
Stratigraphical Note, 
In this, the Third Piirt of his Pesearches on the Palaeozoic Possils of 
New South Wales, De Koniuck treats of what he terms the “ Carboniferous 
Fossils.” ( Vide pp. 108 and 282.) In this wide use of the term Carboniferous, 
so as to inelude all the horizons to which the fossils deserihed in this work 
belong, De Koninek followed the elassification adopted by most Australian 
Geologists at the time he wrote. Later observations, however, by Mr. P. L. 
Jack and Mr, P. Etheridge, Junr., have led them to adopt the term Permo- 
Carboniferous to embrace such horizons in Queensland as those covered by 
the term Carboniferous of De Koninek, as applied to the rocks of Ncav South 
Wales. ^ Five distinct formations are included by these authors under this 
term, namely — the Gympie and Star Formations, and the LoAvcr, Middle, 
and Upper Divisions of the Bowen Piver Coal-field. 
These five formations have been grouped together in one system, 
chiefly on account of the identity of certain marine fossils occurring in them, 
Avhich range from the Gympie to the Middle BoAven Divisions inclusive, 
notably such varieties as Vrotoretepora amjila, Lonsd. ; Spirifera vespertilio, 
G. B. Shy. ; Spirifera StrzelecJdi, De Kon. ; Martinia {3Iarliniopsis ?) 
suhradiata , G. B. Shy. ; Productus hracliytlicenis, G, B. Shy. ; Conularia 
temiistriata, McCoy; etc. The Upper BoAven is linked AAuth the Middle 
BoAven Division by the community of its flora, as Avell as by the close rela- 
tionshi]) of its marine fauna. The exaet Stratigraphical relations of the Star 
and Gympie formations to one another are not known, hut it is inferred that 
the Gympie is jirohahly the older, on account of its being usually more highly 
inelined and more metamorphosed than the Star Division, as developed in 
Queensland. The LoAAm* BoAveu Division, Avhich is ehiefly volcanic, has not 
been observed in Queensland in contact with either Star or Gympie beds, hut 
appears to he succeeded by the Middle BoAven Division, Avithout any marked 
unconformity. 
PLCcent observations have shoAvn that probably the Gympie Division ^ 
as AA ell as the equivalents of the Middle and Upper BoAven Divisions of 
Queensland, are extensively developed in NeAv South Wales. Possibly the 
Star Division may also he represented in New South Wales by such forma- 
tions as the friable quartzites Avith Pliynchonella pleurodon, of the Clyde 
^ Geology and Palajontology of Queensland and New Guinea. By R. L. Jack, F.G.S., F.R G.S., and R. 
Etheridge, Junr., pp. 70, 71. By Authority. Brisbane, 1892. 
