STUDIES ON MESOZOIC AND CAINOZOIC J 



DINQFLAGELLATE. CYSTS %>,„.. tt <S 



By 

 ROGER JACK DAVEY 



(Dept. Geology, Nottingham University) 



CHARLES DOWNIE, Ph.D. 



(Dept. Geology, Sheffield University) 



WILLIAM ANTONY SWITHIN SARJEANT, Ph.D. 



(Dept. Geology, Nottingham University) 



and 

 GRAHAM LEE WILLIAMS, Ph.D. 



(Dept. Geology, Sheffield University) 



26 Plates; 64 Text-figures 



BULLETIN OF 

 THE BRITISH MUSEUM (NATURAL HISTORY) 

 GEOLOGY Supplement 3 



LONDON : 1966 



