BY R. ETHERIDGE, JUN. 157 



all through the centre of Queensland from north to south, and 

 spreading out in the south to Groondiwindi on the east, and over 

 the South Australian border on the west. This immense deposit 

 is now believed to be homotaxial with the Upper Mesozoic beds of 

 Europe, and in a great measure to represent that division known 

 as the Cretaceous. 



During the explorations carried on for the " Proposed Trans- 

 continental Railway" by Major-General the Hon. W. Feilding, 

 Mr. Jack collected largely in the valley of the Leichhardt River. 

 At Kamileroy magnesian limestone was discovered, which, to 

 use his own words,* "yielded specimens of shark's teeth, echinus 

 spines and plates, belemnites, mollusca, &c., — enough to prove 

 that it formed part of the " downs " formation, the same which 

 extends from Cloncurry to Hughenden." He also describes 

 another similar limestone on Gunpowder Creek, a tributary of the 

 Leichhardt, about nine miles from the mouth " full of small fish- 

 teeth, fragments of chelonian plates, and belemnites, with a few 

 shells."! 



The specimen sent to me by Mr. Jack from Kamileroy is a 

 shark's tooth referable to Otodus appendiculatus, Ag., and is 

 described further on. 



With the view of supplementing the collection of Queensland 

 fossils now under description for Mr, Jack, I have been favoured 

 by Mr. de Vis with a number from the Queensland Museum. 

 Amongst these are some vertebrae of a large shark, probably 

 referable to Lamna, from the " Rolling Downs Formation " at 

 Richmond Downs, Flinders River. 



The following is a detailed description of the fossils : — 



* Reports on the Geological Features of Part of the District to he 

 traversed by the Proposed Transcontinental Railway, hy Robert L. Jack, 

 iVc, (fcap., Brisbane, 1S85), p. 8. 



XLoc. cit. p. 12. 



