44 GEOLO(iY OF LUWRli MBSOZOIC ROCKS OF gUEKNSLAXD, 



point of view of the phylogeny of the Iiisecta, but the results, 

 up to the present, do not indicate that they will be of material 

 value in the determination of horizons, or in fixing the position 

 of the strata in the Geological Record. 



In Appendix B to the " School Geography of Queensland," by 

 G. Harrap, published in 1916, Mr. Dunstan gives a new classi- 

 fication of the geological formations of Queensland In this 

 classification, the Lower Mesozoic rocks are divided into (?)Tri- 

 assic and Jurassic, the Ipswich Series and Bundamba Series 

 being classed as (?)Triassic, and the Walloon Series as Jurassic. 

 No definite evidence is given for the separation. Included also 

 in the Jurassic are the trachytes of the Glasshouse Mts., which 

 all recent work goes to show are of Cainozoic age. 



Professor Schuchert, in a paper recently issued, entitled "The 

 Problem of Continental Fracturing and Diastrophism in Ocean- 

 ica,"* gives a series of palseogeographic maps of Oceania; these 

 include one showing the distribution of land and water in the 

 Triassic period. 



Mr. E. C. Andrews, in a recent paper entitled " Notes on the 

 Structural Relations of Australasia, New Guinea, and New Zea- 

 land,"! makes many statements which invite criticism, some of 

 them coming within the scope of this paper. He considers the 

 growth of Australia, New Guinea, New Caledonia, and New 

 Zealand as independent units. The question suggests itself — 

 Are not these portions of the one continental mass, which have 

 .become separated as a result of folding-movements'? In discuss- 

 ing the 'J'rias-Jura, he infers two basins of deposition in New 

 South Wales and Queensland, viz.: the Hawkesbury basin, and 

 a northern basin, separated by high land-barriers, and with 

 sedimentation taking place simultaneously in the two basins. 



There are many papers dealing with the volcanic rocks of 

 south-eastern Queensland, in which passing reference is made to 

 the Lower Mesozoic rocks occurring in the same area as the 

 volcanic rocks. It is unnecessary to mention these in detail 



* Amei\ Journ. Sci., xlii., 1916, p. 91. 

 t Journ. Geol., xxiv. , 1916, p. 751. 



