FROM THE ZONE OF AMMONITES ANGULATUS. 



33 



The remarkable Thecosmilia rugosa, Hhabdophyllia recondita, and Elysastraa Fischeri, 

 from the lower part of the Sutton Stone, have been described and drawn by Laube from 

 the St. Cassian beds of the Trias. The fauna with which they are associated in the Trias 

 has not been described ; but the presence of the species in the Angulatus-Zone of the 

 Lower Lias or the Infra-Lias is very interesting. 



The species described by Terquem and Piette, E. deFromentel, and D'Orbigny, viz. — 



Isastraa Sinemuriensis, E. de From., 

 Septastraea excavata, E. de From., 

 Montlivaltia polytnorplta, Terquem et Piette, 

 Astroccenia Sinemuriensis, D'Orb., sp., 

 Thecosmilia Martini, E. de From., 



„ Michelini, Terquem et Piette, 



are associated in the Continental Liassic strata with many of the species of Mollusca which 

 are noticed in the Sutton Stone and in the deposits at Brocastle in Glamorganshire. 



In the LumacJiello of the upper series of the Infra-Lias of Normandy^ (the Calcaire de 

 Valogne) Septastraa ecccavata is found to be associated with the following species, found 

 also with it in the Glamorganshire Lias, which rests on Carboniferous Limestone: 



Ceriihium acuticostatum, Terquem. 

 Turritella Bunker i, Terquem. 



„ Zenheni, Dunker, sp. 

 Phasianella Morencyana, Piette. 

 Ostrea anomala, Terquem. 

 Cardinia regularis, Terquem. 



At Vic de Chassenay 2 Thecosmilia Martini, E. de From., and Astroccenia Sinemuriensis, 

 D'Orb., sp., are associated with — 



Ammonites Moreanus, D'Orb. 

 Littorina clathrata, Desh. 

 Cerithium Semele, D'Orb. 



„ gratum, Terquem. 



,, acuticostatum, Terquem. 



The middle bed of the Gres calcareux described by Terquem (' Pal. de Hettange,' 



^ Deslongchamps, 'Mem. Soc. Linneenne de Normandie,' vol. xiv, 1864. 

 2 Martin, 'Pal. Strut, de 1' Infra-Lias,' &c., 1860. 



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