124 



GEOLOGY MAITLAND-BKANXTON DISTRICT, 



Perhaps the best outcrop of this is to be seen at Browne's 

 Ravensfield Quarry, about three miles south-west from Farley 

 Railway Station, where good collections can be obtained. 



These sandstones are followed by a series of sandy shales and 

 mudstones, and the whole stage attains a thickness of from 800 

 to 1,000 feet. The mudstones are, in general, light-coloured, but 

 some bands are much impregnated with iron, and have become 

 stained quite red. Fossils are very numerous, and good collec- 

 tions can be obtained from both the road and railway-cuttings 

 near Farley Railway Station. The following is a list of fossils 

 from the Farley beds : — 



Dielasma sacculus. 



D. cymbcrformis. 



D. biundata. 



D. amygdala. 



D. inversa. 



D. hastata. 



Spirifer duodecimcostata. 



S. stokesi. 



S. tasmaniensis. 



Marl in top* is subradiata. 



var. morrisii. 



var. konincki. 

 Productus cora var. farleyensis. 

 P.fragilis. 

 Rhynchonetla. 

 Chonetes. 



Edmondia( I) aobilissima . 



Aviculopecten squamuliferus. 



A. tenuicollis. 



A. sprenti. 



A. englehardti. 



Aphanaia sp 



Mytilus bigsbyi. 



ModloJopsis. 



Masonia. 



Pleur ophorus sp. 



P. gregarius. 



Slutchburia farleyensis. 



Pachydomus. 



Platyschisma oculus. 



/'. rotundatum. 



( 'onularia inornata. 



Gon iatites micromphalus. 



Cardiorrtorpha g ryphio >de,s. 



In the upper 200 feet of these beds, Nucnlana waterhousei, 

 which does not appear in the lower part, is of fairly frequent 

 occurrence. 



An interesting and somewhat different vertical section is 

 obtained in the vicinity of Pokolbin and Mt. View (Fig.2). 

 More than 2,000 feet of the Lochinvar Stage have been over- 

 lapped in this part. The lowest member of the stage here is a 

 coarse conglomerate and sandstone, at least 600 feet thick, which 



