ZONE OF AVICULA CONTORTA. 



165 



Fig. 13. — A Vertical Profile of the Penarih Cliffs. 



Aegoceras pJanoriis, Cidaris Edwardsii. 



b. Apg. planorbts, Lima pectinoides, Modiola Hillana, Pecten texlorius. 



c. Lima precursor, L. punctata, L. pectinoidei, Modiola minima. 



d. Ostrea liassica, Pticatula spinosa. 



e. OsTBEA Bed. Ostrea liassica, Modiola minima. 



f. Lima punctata. 



J g. Anatina Stiessii, Modiola minima, Lima precursor. 



\ h. Axinus concentricus, Leda Titei, Ostrea liassica, Pticatula intusstriata. 



Brown sandy Shales. 



Valoniensis Bed. Cardium Rhmticum, Gervillia precursor. 

 Upper Shell-Bed. Pleurophorus angulatus. 



Pecten Valoniensis, Anatina Suessii, Axinus cloacinus, A. depressus, 

 Pleurophorus elongatus, Myqphoria postera. 



Lower Pecten Bed. Avicula contorta, P. Valoniensis, C. Rhceticum. 

 Cardium Rhteticum, Avicula contorta. 



Pullastra arenicola, Axinus elongatus, Pecten Valoniensis. 



Fossiliferous shelly Limestone. 



Bone Bed. Saurichthys, Gyrolepis, Hyhodus, Acrodus, Nemacanthus. 



V. Fish Bed. 



Cream-coloured, greyish-green, and pale-red marly limestones, breaking 

 into conchoidal masses and destitute of fossils. 



Alternations of greenish-grey, conchoidal marls, breaking up into 

 cubical fragments, and having thin veins of gypsum filling the 

 joints. 



Red Marls of the Keuper Beds. 



22 



