1872.] DAIXTREE GEOLOGY OF QUEENSLAND. 279 



At Marathon, which is some forty miles further down the 

 Flinders than Hughcnden, there is, close to the homestead, an out- 

 crop of fine-grained yellow sandstone, which has been quarried for 

 building-purposes ; and below this, to the edge of a water-hole sup- 

 plying the house, is a series of sandstones and argillaceous lime- 

 stones, containing numerous organic remains. 



These I have submitted to Mr. Etheridge for examination and 

 correlation, the result of which will appear in the Appendix to my 

 paper ; I, however, attach here a summary of the forms determined 

 by him from this locality. 



Marathon. 



Inoceramus marathonensis, Eth. PI. XXII. fig. 1. 



allied to problematiciis. 



pernoidcs, Eth. PL XXII. fig. 3. 



multiplicatus, Stol., var. elongatus, Eth. PI. XXII. fig. 2. 



From these beds also came M'Coy's Reptilia. 



The " Marathon beds," as they may be designated, are undulating, 

 with an uncertain dip. Proceeding from " Marathon " up the Flin- 

 ders river (most probably over a series of older beds), no cliff-sections 

 are met with ; but at Stewart's Avash-pool, on the main road, the Avi- 

 eida Jiiic/hendensis, Eth., of Hughenden is found in abimdance. 



At Hobert Grey's Hughenden Station, however, which lies about 

 three miles east of Moinit Walker, a scries of calcareo-argillaceous 



Fig. G.— Section of Cretaceous Strata, Betts Creel-, Flinders River, 

 Northern Queensland. 



beds crop out, containing a marked and well-pi^eserved fauna, indi- 

 cating no great difference in fades from those of Marathon. 



The accompanying section (Fig. 6) of a cliff on Betts Creek, inter- 

 mediate between Marathon and Hughenden, and one on the bank 



