rOSS/L CORALS. 



9t 



quently the latter is the best way of getting them, as 



the shale weathers, and the corals imbedded in it get 



liberated. At Cherrington, near Shipston-on-Stour, 



very numerous and fine specimens are picked up off 



the fields ; Montlivaltia Victories (perhaps the largest 



of our simple fossil corals) is not 



uncommon. Brocastle, Ewenny, 



Marton near Gainsborough,Larne 



near Belfast, Fenny Compton in 



Oxfordshire, Harbury, Aston - 



Magna, Down-Hatherley, the 



neighbourhood of Lyme Regis, 



Ilminster, etc., are places where 



Lias corals can be obtained more 



or less abundantly. 



In the Inferior Oolite at 

 Crickley, East Coker, Painswick, 

 Dundry Hill near Bristol (a splendid fossil hunting- 

 ground for fossils of various sorts), Leckhampton, 

 Isastrcua, Latiniceandra, Thamnastrceay etc., may be 

 found. At Cloughton Wykneare, Scarborough, there 

 is a " Millepore bed " — a stratum of fossil Polyozoa^ 

 but also containing corals, which extends over a good 

 distance. The quarries in the neighbourhood of 

 Scarborough are famous for Oolitic corals; nowhere 

 else is the characteristic Thamnastrcea concinna more 

 plentiful, for it sometimes occurs in bands two feet 

 thick, and in lines of nodules which extend over 

 a large area, so that they may be worked by the 



Fig. 70. — Astroc^nia gibbosa 

 (Lias, Brocastle). 



