AMMONOIDS 
(Slephanoccrax) 
(Lytoccnm) 
CKTSTADEAN 
( Meoch irus) 
SPONGES 
AM MONOID 
(,'Egoceras) 
GKAB (paloeinachus) 
SPONGE 
AMMONOIIW 
(aspidoceras) 
(cardioceras) 
CRUSTACEAN 
(Eryma) 
JURASSIC PERIOD 
To face p. 62 
