XII 



EVOLUTION IN THE PAST 



DlPLODOCUS 



STEGOSAURUS 

 SCELIDOSAURUS . 

 CERATOSAURUS .. . 



METRIORHYNCHUS 

 CRYPTOCLIDUS AND PLIOSAURUS 

 FLYING LIZARDS 

 ARCHLEOPTERYX 



A lice B. Woodward 



Ernest Bucknall 

 Alice B. Woodward 



IGUANODON 



* POLACANTHUS 

 TRICERATOPS 



* PTERANODON 



* MARINE LIFE 

 HESPERORNIS 



PHENACODUS 



HYRACOTHERIUM 



CORYPHODON 



MCERITHERIUM 



PAIJEMASTODON 



* ARSINOITHERIUM 



TlTANOTHERIUM 



HYRACODON 



HYOPOTAMUS 



VEGETATION 



PLIOPITHECUS 



MACH-ffiRODUS 



ALTECAMELUS 

 TETRABELODON 



HIPPARION 



DlNOTHERIUM 



CERVUS SEDGWICKI 

 MEGATHERIUM 



CRETACEOUS PERIOD 



Alice B. Woodward 



EOCENE PERIOD 



Alice B. Woodward 



PAGE 



90 (i) 



90 (ii) 

 92 (i) 

 92 (ii) 

 94 () 

 94 () 

 96 (i) 

 96 (ii) 



98 (i) 

 98 (ii) 



too 



104 



1 08 



in 



119 



121 

 122 

 124 

 126 

 130 



OLIGOCENE PERIOD 



. Alice B. Woodward 141 



, I4 



'44 



Ernest Bucknall 152 



MIOCENE PERIOD 



. Alice B. Woodward 154 



156 



. .. '58 



. . -160 



PLIOCENE PERIOD 



. Alice B. Woodward 169 



183 



