10 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [NoV. 21, 



that, although there are abundant fragments of wood mineralized 

 by silica and iron in the deposits, no traces have been found of any 

 plants which occur in the Wianamatta, Hawkesbury, or Newcastle 

 beds of New South "Wales. 



It was my intention to redeem my promise to the Geological 

 Society, and send the results of further investigations along the 

 Maranoa Eiver. Circumstances have hindered this ; but I may now 

 mention that I have ascertained that the Mesozoic formations extend 

 over an enormous area in Tropical Eastern Australia, that from the 

 eastward of WoUumbilla to the Maranoa, and thence to the Mve 

 and Barcoo Eivers, and so to the Thomson, the Belyando, and the 

 Flinders (from all which I have received collections), there are for- 

 mations which appear to me to range from the Trias up to the Cre- 

 taceous ; and I anticipate hereafter a development of formations or 

 groups almost as regular in succession as those in England. 



Erom the Barcoo I have fish-teeth imbedded in fossiliferous rocks 

 not unlike those of "WoUumbilla ; and from the Branston Eange on 

 the Flinders I have Ammonites, Avicula, and a fragment of an Ino- 

 ceramus, in a grey hmestone highly metamorphosed, jointed, and 

 full of calcareous spar, the joints producing a regular columnar 

 structure. 



Belemnites of various species are common on the Mve, the Bel- 

 yando, and the Amby Rivers, and at Bungeeworgorai, on Eitzroy 

 Downs, Pentacrinites being beautifully developed in the calcareous 

 grit of Mitchell Downs. All these last-mentioned places are in 

 Queensland. 



I hope hereafter to be able to show distinctly the order of succes- 

 sion in all the Australian deposits. My present object has been to 

 give a brief resume of the discovery of Secondary formations in 

 Australia up to the present year, and I must therefore conclude it 

 with stating that it was announced at the beginning of 1865, in the 

 Melbourne papers, that Professor M'Coy had received from a student 

 of the University an Inoceramus, and a fragment of an Ammonite 

 from Flinders, which he considered to be Cretaceous. 



I have not included the Unio ( U. Daintreei) described by Professor 

 M'Coy from the Western part of Victoria, because it does not come 

 under the head of Marine fossils ; but I believe it to be the only 

 fossil animal found in the so-called Oolitic deposits of that colony ; 

 and of course it proves nothing as to comparison of them with the 

 WoUumbilla or Moresby Eange beds. 



PS. As a sequel to the above, and as almost necessary to the 

 clear understanding of the perfect separation of beds with Glossojpteris 

 (which Professor M'Coy so long maintained were Oolitic) from those 

 above mentioned, I may perhaps be allowed to state that no GJos- 

 sopteris has been found in Yictoria, Queensland, Western Australia, 

 or in New South Whales except in association with beds containing 

 fossils of Palaeozoic age, that at Stony Creek in the Hunter Eiver- 

 basin the Glossopteris-beds are covered by from 2000 to 3000 feet of 

 strata full of Upper Palaeozoic fossils, that similar associations exist 



