254 DISTRIBUTION OF GLOSSOPTERIS, 



Ghssopteris occurs sparingly in the Upper Marine Series, 

 fragments of wood referred to Araucarioxylon being the only 

 other kind of plant known to be contemporaneously interbedded 

 in the same series. 



In the Tomago Series Ghssopteris is still largely associated with 

 Gangamopteris, but in the Dempsey and Newcastle Coal-measures, 

 while Ghssopteris is very abundant, Gangamopteris appears to be 

 somewhat rarer. 



At Joadja Creek and at Hartley Vale, Ghssopteris leaves occur 

 contemporaneously interbedded in kerosene shale, on the horizon 

 of the Newcastle Coal-measures. Kerosene shale has been deter- 

 mined by Professors Bertrand and Renault in their interesting 

 and able memoir just published* to be chiefly formed of the alga 

 Heinschia australis. 



At Joadja Creek Ghssopteris is frequently found in company 

 with Vertebraria, the former being horizontal in position, the 

 latter almost invariably vertical. Ghssopteris leaves have been 

 observed to form portion of the coal in the Bulli Coal-seam in the 

 Illawarra District on the horizon of the Newcastle Coal-measures. 



The horizon from which the specimen which forms the subject of 

 this paper was obtained, is probably that of the Newcastle Coal- 

 measures, the locality being in the Western Coal-field. The fossil 

 was found by Mr. C. J. Horsley, J.P., on the Wollar Road, then 

 (1890) in course of construction, on the southern fall of "The 

 Gap," about seventeen miles from Mudgee. The tinder generously 

 gave it to Mr. N. J. C. MacTairgart, B.E., of the Water Conser- 

 vation Branch, Public Works Department, who presented it to 

 the Geological Museum, University of Sydney. A note on 

 its occurrence has already been contributed by one of us.f 

 Ghssopteris has never been found in New South Wales in 



* Reinschia Australis et premieres Remarquessur le Kerosene Shale de la 

 Nouvelles-Galles du Sud, par MM. C.-Eg. Bertrand & E. Renault. Autun. 

 Impriinerie Dejussieu, Pfere et Fils. 1894. 



t T. W. E. David. Proc. Linn. Soc. N.S. Wales, 1893, viii. (2), Pt. 2, 

 p. 218. 



