34 



BRITISH FOSSIL CORALS 



1855), contains Isastraa Sinemuriensis and the following species, in addition to the 

 Mollusca just mentioned from the Cote d'Or and the Calcaire de Valogne -. 



Neritopsis exigua, Terquem. 

 Gervillia acuminata, Terquem. 

 Lima tuberculata, Terquem. 

 Plicatula intusstriata, Emm. 

 Ostrea irregularis, Miinst. 



These species, common in the French beds which are included in the Zone of Ammonites 

 angulatus, and which form part of the Lower Lias of some and of the Infra-Lias of other 

 geologists, are those that are associated with the great Coral-fauna of the Sutton Stone 

 and of the equivalent deposits at Brocastle, in Glamorganshire. 



The following Table shows the community of some well-known species in the 

 coralliferous Liassic beds of Glamorganshire, and those of France and the Duchy of 

 Luxembourg. 





n Stone. 



5 

 o 

 ■a 



6 



1 1 



Icaire de 

 'alogne. 



"a; 



1? c 

 a 



is 



£ c 

 -■^ SI 



!| 



tembourg, 

 calcareux. 





o 





o 



S o 







^ 1 











m 











o 



Septasfrcea excavata, E. de From. 

































* 





— pedunculafa, Dune 

































* 





Thecosmilia Martini, E. de From 



















— Michelini, Terq 



* 

















Ammonites angulatus, Schl 



















Cerithium acuticostatum, Terq 

















* 



— gratum, Terq 



















— Semele, D'Orb 















* 

































* 









Liitorina clathrata, Desh 







* 













Phasianella Morencyuna, Piette 







* 









* 





Neritopsis exigua, Terq 



















Gervillia acuminata, Terq 







* 









* 





Ostrea irregularis, Miiuster (0. liassica, 



















Strickland) 





* 





* 









* 



— multicostata, Munst 



* 



* 



* 













Lima tuberculata, Terq 











* 











* 









■X- 



* 



* 



Cucullaea Ilettanyiensis, Terq 



















Cardita Heberti, Terq 















* 





















» 



































» 





* 













» 



* 



1 Terquem et Piette, op. cil, - Cote d'Or. 



