Quart. Journ. Geol. Soc. Vol. LIX, PI. XXIV. 



Ibury Cliff, near Chepstow. 



Feet inches. 

 24 Ammonites (Psiloceras) Johnstoni, Lima gigantea. 



( Ammonites (Psiloceras) planorbis (teeming in the top bed), 

 2 7 -{ Am. (Psil.) Johnstoni, Lima gigantea, Modiola minima, 



(^ Cardinia, Anomia. 

 11 Fishes (scales), Anomia, Pseudodiadema. 

 -. . ( Ammonites (Psiloceras) planorbis, Modiola minima, Lima 



X gigantea, L. pectinoides. 

 hds 4 ^ Wishes (scales), Ostrea liassica, Lima pectinoides, Avicula 



X fallax, 2 Anomia, Pseudodiadema. 



f Ostrea liassica, Lima Hermanni, L. pectinoides, L. valon- 

 *{ iensis, Anomia, Pectens of calvus & textorius-types, 

 ^ Pseudodiadema (spines). 

 Ostrea liassica, Modiola minima, Avicula fallax. 

 Pleuromya crowcombeia, Ostrea liassica, Modiola minima, 

 Avicula fallax, Protocardium rhceticum, Unicardium 

 cardioides. 



-. -. ( Pleuromya crowcombeia, Ostrea liassica, Modiola minima, 

 \ Lima valoniensis, Avicula cygnipes, Phasianella (?) . 



> to 2 Fishes (scales) and shell-fragments (Ostrea ?) . 



P] 





Larwinula liassica and varieties. 



to 7 



■eral^ 



■wit' L n 8 S-Estheria minuta var. Brodieana, Schizodus (?) , Pleuro- 

 X phorus, fishes (scales ?). 



3 5 Myophoria, Pecten, and shell-fragments. 

 2 4 



C Pecten valoniensis, Schizodus Fwaldi, Myophoria Emmerichi, 

 X Protocardium rhceticum. 



yn • 7 



* | 5 Pecten valoniensis, Gyrolepis Alberti. 



6 Schizodus and shell-fragments. 



tic; 



ice; > u o <; 



f Acrodus minimus, Saurichthys acuminatus, Gyrolepis Alberti, 

 J Sybodus minor, Pecten valoniensis, Avicula contorta, Pro- 

 tocardium rhceticum, Modiola minima, Schizodus Ewaldi, 

 [_ coprolites, and an ichthyodorulite. 



S ^ S 1 5 4 \ Schizodus Ewaldi, Modiola minima, Pleurophorus elongatus, 

 X PI. angulatus, Protocardium rhceticum. 



1 2 

 6 

 ,n e, ^ n c ( Acrodus minimus, Gyrolepis Alberti (scales & teeth ?), 



\ Saurichthys acuminatus, and small coprolites. 

 , .. C Gyrolepis Alberti (scales and teeth?), Sargodon tomicus, 



r*~ ] Saurichthys acuminatus, Sybodus cloacinus, PL. minor, 



3en \ 4 \ Acrodus minimus, Nemacanthus (spines), Modiola, Schizo- 

 dus (?), Labyrinthodont-tooth, skin of Sybodus, coprolites, 

 fish-vertebrae, piece of wood. 



10 3 

 56 



jen blocks on the shore. 



e Lower Lias were determined by Mr. Arthur Vaughan, F.G.S. 



