01 
tlie Mersey, hut occupy a position answering to the Upper Marine heels. It 
would thus appear that the so-called Lower Coal Measures, together with 
Upper Marine beds, including the strata at Porter’s Hill, near Hobart, form one 
continuous series, the more as Gangamopteris angustifolia, M‘Coy, is quoted, 
also from the Mersey Upper Marine beds. 
According to the plant fossils, they appear to me to represent the 
Newcastle Coal Measures of New South Wales ; also the beds above the 
conglomerates of the Bacchus Marsh beds in Victoria ; similar relations arc 
also in Queensland. These beds are especially developed in the northern 
coal-fields on the Don and Mersey Divers ; and then at Porter’s Hill, near 
Hobart. 
The fossils hitherto known from these beds are : — 
Vhyllothcca australis, Bgt. Mersey Coal Measures. 
Glossoptcris Browniana, Bgt. Mersey Coal Measures. 
,, ampla, Dana. Porter’s Hill, Hobart (abundant); Mersey 
,, communis, Ueistm. Mersey. 
,, spathulato-cordata, Ueistm. Mersey. 
,, reticulum, Dana. Mersey. 
Gangamopteris angustifolia, M’Coy. Mersey. 
„ spathulata, M‘Coy. Mersey. 
,, obliqua, M £ Coy. Mersey; Porter’s Hill, Hobart. 
,, cyclopter oicles, Ueistm. Mersey. 
,, ,, var. subauriculata, Ueistm. Mersey. 
,, ,, var. attenuate, Ueistm. Mersey. 
Tasmanilcs punctatus, Newton. Mersey. 
Noggerathiopsis spathulata, Dana, sp. Mersey. 
,, Hislopi, Bunb, sp. Mersey. 
Squamae gymnospermarum (?) Mersey. 
Samaropsis, sp. (?) (winged seed). Mersey. 
The so-called Lower Marine beds of Tasmania would then represent 
the Upper Marine beds of New South Wales. 
Age — Palaeozoic ; Upper Carboniferous and Permian. 
2, Upper Plant and Coal-bearing Series. — These are called “ Upper 
Coal Measures” by Tasmanian writers; but this must be understood in a 
different sense from the “ Upper Coal Measures,” or Newcastle Beds of New 
