34 



BRITISH FOSSIL CORALS 



1855), contains Isastraa 8'meinuriensis and the following species, in addition to the 

 Mollnsca just mentioned from the Cote d'Or and the Calcaire de Valogne : 



Neritopsis exigua, Terquem. 

 Gervillia acuminata, Terquem. 

 Lima tuberculafa, 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 

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

 Luxembourg. 











„ 





^' 



„_ 







^ 



S 





» C 



13 aj 





S c 



^g 





c 



i 



I 







•g « 

 II 





is 



Eg 





« 



M 





a. 





05 



'^ 



O 



Septastrcea excavata, E. de From 







# 





* 





* 





Montlivallia polymorpka, Terq 



* 





« 









* 







* 





« 









* 





Isastraa Sinemuriensis, E.de From 



Tliecosmilia Martini, E. de From 







* 





* 





* 





— Mic he I ini, Terq 



* 





* 









* 





Amjnonites angulatus, Schl 





* 











* 





Cerittiium acuticostatum, Terq 







« 



« 



* 





* 



# 



— gratum, Itrq 







* 







* 



* 



» 



— Semele, D'Orb. ... 







* 





* 



* 



* 



* 



Turritella Bunlceri, Terq 



— Zenkem,J)wik., &-g 







» 





» 





* 



* 



Littorina cluthrata, Desli 





* 



* 









* 

 # 



7^ 



Phasianella Morencyana, Piette 



Neritopsis exigua, Terq 



» 















* 



Gervillia acuminata, Terq '. 







* 









* 



* 



Ostrea irregularis, Miiuster (0. liassica, 



Strickland) 



* 



* 



« 



# 





* 





» 



— multicostata, Miinst 



* 

 « 



* 



* 



* 





* 









— anotnala, Terq 



Lima tuberculafa, Terq 



* 



* 



* 







* 



* 



* 



Cucullcea Hettangiensis, Terq, 







* 









< 





Cardita Heberti, Terq 







* 









* 





Lima exaltata, Terq 



* 













* 



* 



— dentata, Terq 



* 



* 













♦ 



Cardinia regularis, Terq 



* 









* 



* 



* 



* 



Plicatula intusstriata, Emm 



* 



* 





* 





* 



« 



« 





1 Terquem et Piette, op. cil. 



■ Cote d'Or. 



