president's address. 589 



and are probably on a somewhat higher horizon than that of the 

 Star Beds in Queensland. Lepidodendron australe has not yet 

 been discovered in the Stroud District. 



(3) Queensland. Although Queensland geologists group all 

 their Carboniferous and Perrao-Carboniferous rocks together under 

 the term Permo-Carboniferous, I propose, for the purposes of this 

 paper, to class as Carboniferous their Gympie, Star and Lower 

 Bowen Series, and to apply the term Permo-Carboniferous to the 

 Middle and Ui)per Bowen Series only, the two last being charac- 

 terised by the abundant association of Glossopteris with a Palaeozoic 

 fauna, more Permian than Carboniferous, P^^oductus hrachythcertos 

 and Sti'ophalosia being specially characteristic. 



In the older group, however, comprising the Gympie and Star 

 beds, the marine fauna is more Carboniferous than Permian, the 

 trilobites Phillipsia and Griffithides being of not uncommon 

 occurrence together with Froductus cor a, Producius subqaadrahcs 

 and Productus semireticulatus. It is stated"^ that in this older 

 group ninety-five species are peculiar to the Gympie beds, twelve 

 are common to the Star beds, seventeen to the middle series of the 

 Bowen River coalfield, and two to the upper series. The flora in 

 the upper series of the older group, the Star, is decidedly Carboni- 

 ferous, containing an abundance of Lepidodendron australe. 



A. The Gympie Series, in the type district at Gympie, has 

 bften well described by Mr. W. H. Rands in his elaborate report, f 

 The thickness of the Gympie rocks is estimated at 2000 feet at 

 Gympie and 21,000 feet at the Hodgkinson goldfield. The rocks 

 at Gympie consist of grey wackes, altered sandstones, carbonaceous 

 shales, grits, conglomerates, breccias, limestone, volcanic tuff' and 

 amygdaloid. At the Hodgkinson goldfield they are chiefly shales 

 and conglomerates. The chief fossils are : — Cordaites australis, 

 McCoy (1), Protoretepora ainjyla, Martinia subradiaia, Productus 

 cora, D'Orb. Leindodendron australe, McCoy, has been found 

 associated with Protoretejjora at the Training Wall Quarries, 



* Geology of Queensland, Jack and Etheridge, p. 96. 

 t On the Gympie Goldfield. Brisbane. By authority. 1S89. 



