190 
LIAS OF ENGLAND AND WALES : 
MIDDLE LIAS FOSSILS. 
FIG. 53. FIG. 57. 
FIG. 59. 
FIG. 60. 
FIG. 56. Modiola scalprum, Sow., J. Lower and Middle Lias. 
57. Gryph(ea cymbium, Lam., | Lower and Middle Lias. 
58. Cardium truncatum, Sow., f . 
,, 59. Belemnites paxillosus, Schloth J. Lower and Middle Lias. 
,, 60. Pecten aquivalvis, Sow. f. 
