Formations of New South Wales. 343 
same age occur in a part of Western Australia, near the Irwin 
river in Queensland ; in Tasmania, and in Victoria, 
Associated with them, both above and below, in New South 
Wales, Coal beds of various thickness roy 3 to 30 a: occur, 
n the Newcastle basin alone there are at least 16 seams more 
i 3 feet thick, sections of which ete gees published by 
John Mackenzie and W. B. Clarke, and are exhibited. (See 
No. 477.) Up to a comparatively recent period, it was not 
known that under the marine beds below these coal seams, 
other seams occur bearing the same genera of plants as in the 
upper beds, of which Glossopteris and Phyllotheca are very 
abundant. "When this fact was first published by me, it gare. 
rise to controversy ; but the truth of my conclusions has 
confirmed since by Mr. Daintree, who, visiting and Eopaniong 
the spot in dispute, found four or five seams in the position to 
which they had been assigned. Now, below these lower coal 
measures there is an enormous thickness of fossiliferous strata, 
bearing Glossopteris could not be Paleozoic, and therefore, that 
the e upper coal measures of Newcastle had no right to be con= 
sidered older than Oolitic. But whilst these upper measures 
produced a fish ‘of undonbted Paleozoic character (Urosthenes 
australis), Cleithrolepis granulatus, Myriolepis laa: and 
other Ichthyolites, examined and determined by Sir P. 
. Egerton, Bart., to be Paleozoic, have been found by a at 
least 1 ,000 feet Bae and of which photographs are exhibited 
No. 
ort In 
“ Le Piante co del? Oolite. ” Since then he has modified 
his views, and, in a subsequent publication, in the “ Hivista 
rie ae ae Padova, vol. xiii, 1863, admits that the Australian 
rather Triassic than Oolitic. ae still, however, 
does not aie comprehend the whole questi 
sc ONONe the coal measures, including Urosthens and Glossop- 
Tis, 7. e., in the Hawkesbury and in which 
Gleithrolepin, Myriolepis and Palzoniscus occur BA Glos- 
Sees, Baron De ae 3 eign ee s, from the way in which the 
beds ; and the only fossils of the gen 
