BY A. B. WALKOM. 139 



containing grains up to nearly an inch long. These erratics are 

 imbedded in brownish, calcareous mudstones, which also contain 

 marine fossils. In this district, in the Crinoidal Shales there are 

 two horizons, on which numerous specimens of the pseudomorph 

 Glendonite occur, namely, (1) about 200 feet above the base (out- 

 crop at Glendon), and (2) about 700 to 1,000 feet above the base 

 (outcrops at Mt. Vincent and Singleton Railway Bridge). This 

 stage terminates upwards in a series of hard, cherty shales, which 

 have been quarried for road-metal, known as the Chsenomya 

 beds. These, as may be surmised from the name, contain large 

 numbers of the fossil Ghonnomya; they also contain obscure casts 

 of radiolaria. These Chaenomya beds attain a thickness of 150 

 to 200 feet. The following is a list of fossils from the Crinoidal 

 Stage : — 



Zaphrentis phijmatoides. Strophcdosia. 



Archce.ocidaris, sp.ind. C hamomya etheridgei. 



Tribrachiocriuus corrugatus. G. audax. 



titenopora crinita. C. mitchelli. 



Protoretepora. C. sp. 



Fenestella{ I). Deltopecten fittoni. 



Spirifer convoluta. Eurydesma hobartense. 



6'. dtwdecimcostata. Mmonia carinata. 



Martin iopsis subradiata. Goniatites micromphalus. 



var. morrisii. 



Notes on the Permo-Carboniferous Pal^ogeocjraphy in 

 New South Wales. 



During almost a year's study of the Permo-Carboniferous rocks 

 of Eastern Australia in general, and New South Wales in par- 

 ticular, some facts with regard to^ the palseogeography have 

 become apparent, which are contrary to the ideas generally held. 

 This is especially so with the distribution of land and sea in 

 New South Wales. It has generally been held that, in Permo- 

 Carboniferous time, New England and north-eastern New South 

 Wales were cut off from the main continental mass, and that 

 there was a water-connection with Queensland, to the west of 

 New England. Professor David expressed this view recently in 



