1872.] 



ETHERIDGE QXTEENSLAND FOSSILS. 



349 



They evidently belong to the same series, or are upon the same 

 horizon, with the Marathon beds described in Mr. Daintree's paper. 

 The specimens from Thompson Eiver greatly resemble those species 

 occurring in the Hughenden beds. The Tower-Hill fossils, from lat. 

 22'^ S., long. 144|° E., appear to be reasserted, and may have been 

 laid down under freshwater or estuarine conditions. Vast numbers 

 of Belemnites, with siliceous pebbles in a calcareous matrix, all rolled 

 together, make up the chief mass of this rock. 



The Barcoo-River beds (lat. 24° 50', long. 146° 25') near Tambo 

 are certainly of the same date as the Marathon Ammonites of the 

 Group Ligati (Am. Sutherlandi). North of Barcoo River (lat. 22° 40', 

 long. 144° 50'), we possess specimens from a well 100 feet deep ; 

 these bear the appearance of Gault forms, and resemble the normal 

 condition of that deposit in England and Erance. "Ward-Eiver 

 group, head of Warragoo, are conglomerates of doubtful age. Again, 

 at the Barcoo river, fifty miles below the junction with the Alice 

 river, Inocerami occur, which appear to me to be Gault. 



These interesting fossils will receive further elucidation ; it was, 

 however, deemed of sufficient interest to thus notice their occurrence, 

 which bears out geographically the distribution of the Cretaceous 

 series previously noticed in the body of the Appendix, and confirms 

 the view taken of the great westerly extension of the Cretaceous 

 rocks through the plains of Queensland, thus perhaps accounting 

 for the universally and widely spread level land in the western 

 plains. 



List of Fossils from Queensland. 



Devonian Fossils. 



Gympie. 



Aviculopecten limEeformis. 



imbricatus. 



multiradiatus. 



Edmonclia concentrica. 



ohovata. 



Productus cora. 



Spirifera bisulcata, var. acuta. 



-vespertilio. 



Spirifera dubia. 



undifera, var. undulata. 



Strophomena rhomboidalis, var. ana- 



loga. 

 Pleurotomaria carinata. 



Euomphalus ? 



Fenestella fossula. 

 Ceriopora ? laxa. 



Carhoniferous Fossils. 

 Bowen River. 



Streptorhynchus Davidsoni. 

 Productus Clarkei. 

 Spirifera striata. 



Spirifera convoluta. 

 allied to bisulcata. 



Head of Don River. 



Strophomena rhomboidalis, var. ana^ 



Productus longispinus. 

 Spirifera allied to striata. 



Natica (Naticopsis ?) harpffiformis. 

 Murchisonia carinata. 

 GrifSthides dubius. 



