288 



PROCEEDINGS OP THE GEOLOGICAL SOCIETY. [Feb. 18, 



Fig. 5. — Generalized Section of the Middle and Upper Lias of the 



Dorsetshire Coast. 



Inferior Oolite. 



QQ 



m | 



\ n t Ammonites variabilis, D'Orb. 



) I Cephalopoda-beds. -< 



A. primordialis, Schloth. 



► Upper Lias Sands. 



/ Upper Lias J A. bifrons, Brug. 

 I Stone. \ A. serpentina, Rein. 



Ti/r i «. \ \ Pleurotomaria-bed. 

 I Marlstone \ -4 AT , i , , 



[ JNodular marlstone. 



A. Bechei, Sow. 

 A. spinatus, Brag. 



A. communis, Sow. 

 A. crassus, Phil. 

 A. annulatus, Sow. 

 A. radians, Scliloth. 



, ..Margaritatus-bed. ^ A. fimbriatus, Sow. 



.Starfish-bed. 

 .Shell-bed. 



► A. margaritatus, Montf. 



The Three Tiers. 



A. Loscombii, Sow. 



1 Green Ammonite- 

 j beds. 



^ 



; 



A. brevispina (non Sow.), A. 

 Bechei, Sow., A. laticostatus, 

 A. heterogeneus, A. Davoei. 

 A. Taglori?, A. fimbriatus, A. 



Bronnii. 



! Belemnite-beds. A. Henleyi. 

 ' ..Belemnites longissimus, Miller. 



..Lower Lias Marls. 



