668 



STKATIGRAPHICAL GEOLOGY 



Yorkshire, Cretaceous of, 484, 



505, 507, 511 

 Jurassic of, 401, 420, 443, 



445, 447 



Permian of, 335 

 Pleistocene of, 623 



Ypresian, 549, 550, 552 

 Yiuxites, 363 



Zamites, 350, 385, 471 

 Zomdodon, 352, 371 

 Zaphrentis, 195, 247 



Zaplirentis zone, 253 

 Zechstein, 342 

 Zeiller, H., 311 

 Zerutcantkus, 317, 327 

 Zones, 22, 158 



,, of fossil plants. 322 



THE END 



Printed by R. & R. CLARK, LIMITED, Edinburgh 



