260 C, A. SUSSMILCH AND T. W. E. DAVID. 



Phillipsia breviceps Phillipsia elongata 

 ,, stroudensis „ dungogensis 



,, superba Griffithides convexicaudatus 



„ waterhousei Brachymetopus strzeleckii 



It will be seen that this marine fauna is a very varied 

 one, the number of genera and species represented being 

 fairly large. The individual fossils are, however, for the 

 most part small in size, particularly when contrasted with 

 the members of the Permo-Carboniferous marine fauna. 

 Corals are comparatively rare in this southern area, but 

 further to the north on the Manning River, near Taree, 

 massive coralline limestones occur. The majority of the 

 species in this fauna belong to the Brachiopoda, and this 

 predominance is even more striking when comparing the 

 numbers of individuals of the different groups, in particular 

 such genera as Spirifer, Productus, Orthis, Strophomena, 

 and Reticularia are exceedingly abundant. Orinoids are 

 abundant in some of the limestones. The Pelecypods and 

 Gasteropods are all small in size and relatively few in 

 number. 



The Lower Carboniferous Fossil Plants. — Fossil plants 

 are abundant, being not infrequent in some of the beds 

 containing the marine fossils, they consist of stems of 

 various plants, which are obviously drift material. The 

 most interesting occurrence of fossil plants in this district 

 known to the writer was found by Prof. T. W. E. David 

 andMr.W.J.EnrightonSchaefer's Farm, Portion 181, Parish 

 of Wallarobba; here a thin bed of tuffacous mudstone is 

 crowded with stems of Lepidodendron, Ulodendron, Pitys, 

 etc., some of which have their internal structure perfectly 

 preserved. This bed immediately underlies a thick bed of 

 conglomerate, and this mode of occurrence, as well as the 

 absence of leaves and fronds, suggests that the vegetable 



