122 ON THE OCCURRENCE OF LEPIDODENDRON AT MT. LAMBIE, 



Scanclstones as Upper Devonian, admitting, however, that there 

 is an immense unconforraability between them and the Middle 

 Devonian Rocks, the hitter being nearly vertical in places where 

 the former are nearly horizontal. 



On page 67 (loc. cit.J Mr. Murray states : — " It is highly 

 probable, therefore, judging from their stratigraphical position, 

 that the Avon Sandstones are — as indicated by Professor McCoy 

 on palseontological evidence — of Lower Carboniferous Age, or 

 passage beds in that direction upwards from the Upper Devonian 

 beds." 



Mr. Etheridge contends that Carruthers' specimens, so-called 

 L. nofhum, and McCoy's L. australe are identical, and should 

 therefore both be termed L. australe. Professor McCoy has 

 indicated that there is a close relation between L. australe and 

 L. tetragonum, Sternb., of the European Carboniferous. 



Mr. R. Daintree has stated that in Queensland strata yielding 

 Lepidodendron at Mt. Wyatt are interstratilied with Spirifera 

 disjuncta beds ; no detailed description or figure, however, is 

 given of these Spirifers. 



The Rev. W. B. Clarke states : " So far as Lepidodendron is 

 concerned, that plant occurs in some places in association with 

 beds that are decidedly younger than any called Devonian ; near 

 Pallal, on the Horton River, and on the Manilla River, in Liver- 

 pool Plains, . . . and at Goonoo Goonoo, on the Peel River, 

 in New South Wales, it occurs in fine grey sandstone with ferns 

 and Sigillaria, in close proximity to beds of marine fossils, which 

 are certainly Lower Carboniferous." 



This conclusion is quite in accord with the evidence collected 

 by Mr. J. Mackenzie, F.G.S., the Government Examiner of Coal- 

 Fields, who showed Mr. Etheridge and one of the authors about three 

 years ago a slab of rock obtained by him in situ in the Stroud 

 district, showing a species of Lepidodendro7i associated with an 

 undoubted Carboniferous marine fauna. At the Great Star River 

 also, in Queensland, we have the authority of Mr. Jack and Mr. 

 Etheridge for stating that Lepidodendron is there associated with 

 a, Carboniferous fauna. 



