1862.] CLABKE AUSTRALIAN FOSSILS. 245 



country between the Balonne and Maranoa Elvers (now a portion of 

 the new colony of Queensland), a collection of fossils which will 

 serve, to a certain degree, to meet the remark I made at p. 361, 

 respecting " the want of good unmistakeable deposits in which the 

 animal remains wiU leave no further room for doubt." Mr. W. P. 

 Gordon, a young squatter on Wollumbilla Creek, one of the branches 

 of the '' Yahoo River " of Leichhardt, was requested by me to search 

 his neighbourhood and the Pitzroy Downs for fossils ; and he has 

 been enabled to send me a very goodly collection. The specimens are 

 accompanied by the pale sandstones of the Creek, and hard red 

 conglomerates and quartzites from between Wollumbilla and the 

 River Amby of Mitchell, including a tract on Fitzroy Downs nearly 

 halfway to Mount Abundance. 



On receiving them, I reported at once to Sir Henry Barkly, the 

 Governor of Victoria, who has taken a deep interest in the little 

 matters of diiference in opinion between Prof. M'Coy and myself 

 respecting the Coal- epochs, that I had obtained Mesozoic evidence 

 (enumerating many of the genera), and that I should be obliged if 

 he would submit them to Prof. M'Coy, to whom I wished them 

 referred, because I considered it was due to Mr. M'Coy on all accounts 

 (specially as he had examined my collections of 1844, sent to Cam- 

 bridge) that I should lay before him such new facts as I could obtain, 

 whichever way the evidence from them might turn. 



Accordingly Mr.M'^Coy has very obligingly examined the specimens, 

 and reports that he considers them " not younger than the base of 

 the Great Oolite, and not older than the base of the Trias." 



On this occasion, the departure of the mail, after an interval of 

 only 24 hours for correspondence, prevents me from doing more than 

 announcing this discovery to the Geological Society, naming the 

 principal genera determined by Mr. M'Coy, without any particular 

 arrangement, but numbered as they stood on my own lists when I 

 broke the fossils out of the matrix. 



The rock in which they occur is a bright calcareous grit, passing 

 into an imperfect limestone, which decomposes into a soft chalky- 

 or greensand-looking substance. 



1. Gigantic Serpulse. 



2. Pentacrinus. 



3. Monotis (? Lias). 



4. Pectines C? Lias). 



5. Lingulae. 



6. Myacites. 



7. New species of Avdcul?e, of the section Meleagrina, 



8. Lima. 



9. Tui'bo. 



10. Natica. 



11. Rhynchonellae. 



12. Monotis (? Saliferian). 



13. Pectines (? Muschelkalk). 



14. Myophoria, a typical new species (? Muschelkalk). 



