BY A. B. WALKOM. 



123 



The Farley Stage commences with the well-known Ravensfield 

 ►Sandstone. This sandstone forms a very persistent horizon, and 

 is from 12-20 feet thick. In the vicinity of Farley Railway 

 Station, there is a considerable development of massive sandstone, 

 reaching perhaps 200 feet in thickness, part of which is the 

 Ravensfield Sandstone. The part which corresponds to the 

 Ravensfield Sandstone, and which has been quarried for building- 

 stone, is about the middle of this massive sandstone. It is 

 difficult, however, to make a division-line in this sandstone, and 

 the whole of it has here been included with the Farley Stage. A 

 similar occurrence is met with on the Eelah Road, and will be 

 described later(p. 126). There are numerous conglomerate patches 

 in the Ravensfield Sandstone, and they contain a varied and 

 abundant marine fauna, amongst which are the folio wins: : — 



Lasiocladia. 



Palceaster clarkei 



P. stutchburii. 



P. giganteus. 



Fenestella^.) fossula. 



F.(\) sp. 



Dielasma cymboeformis. 



D. biundata. 



D. sp. 



Spirifer tasma n iensis. 



S. duodecimcostata. 



S. sp. 



Uyrtina(1). 



Martiniopsis subradiata. 



var. morris Li. 

 Solenopsis sp. 

 Cardioniorpha(l). 

 Chceuomya mitcltelli. 

 G. etheridyei. 

 C. n.sp. 



EdmondiaO.) nobilissima. 

 Aviculopecten squamuliferui 

 A. profundus. 



Aviculopecten tenuicollis. 

 A. sprenti. 

 A. mitchelli(]x\\\). 

 Di'Hopecten limceformis. 

 D. subquinquelineatus. 

 D. farleyensis. 

 D. fittoni. 

 Eurydesma cordata. 



var. ovale. 

 Mceonia carinata. 

 Pleurophorus. 

 Pachydomus. 

 Astartila corpulenta. 

 Lamellibranch (new genus). 

 Platyceras altum. 

 Platyschisma. 

 Ptycomjihalina trifilata. 

 Couularia teuuistriata. 

 C. inomata. 

 Hyolithes lanceolatus. 

 Goniatites micromphalus. 

 Orthoceras, 2 spp. 



