MESOZOIC AND CAINOZOIC DINOFLAGELLATE CYSTS 



Page 



deanei sp. n. . 







58 



simplicispinum sp. n. 





59 



patulum sp. n. 





60 



arborispinum sp. n. 





61 



salpingophorum (Deflandre) 





61 



costatum sp. n. 





62 



readei sp. n. . 





64 



radiculatum sp. n. . 





65 



manlelli sp. n. 





66 



latirictum sp. n. 





66 



recurvatum (H. H. White) 





67 



sheppeyense sp. n. . 





68 



bowerbanki sp. n. 





69 



Other Species ...... 





70 



Genus Oligosphaeridium nov. .... 





70 



Oligosphaeridium complex (H. H. White) 





7i 



reticulatum sp. n. . 





74 



vasiformum (Neale & Sarjeant) 





74 



macrotubulum (Neale & Sarjeant) 





75 



pulcherrimum (Deflandre & Cooksoi 



i) 



75 



prolixispinosum sp. n. . 





76 



Other Species .... 







77 



Genus Perisseiasphaeridium nov. 







78 



Perisseiasphaeridium pannosum sp. n. 







78 



Other Species .... 







79 



Genus Litosphaeridium nov. 







79 



Litosphaeridium siphoniphorum (Cookson 



& Eisenack 



) 



80 



inversibuccinum sp. n. 







82 



Other Species .... 







82 



Genus Cordosphaeridium Eisenack 







83 



Cordosphaeridium inodes (Klumpp) . 







83 



gracilis (Eisenack) 







84 



fibrospinosnm sp. n. 







86 



cracenospinum sp. n. 







87 



exilimurum sp. n. 







87 



latispinosum sp. n. 







88 



divergens (Eisenack) 







89 



multispinosum sp. n. 







89 



fasciatum sp. n. 







90 



Other Species .... 







9i 



Genus Polysphaeridium nov. 







9i 



Polysphaeridium subtile sp. n. . 







92 



pastielsi sp. n. 







92 



pumilun sp. n. 







93 



laminaspinosum sp. n. 







94 



Other Species .... 







95 



Genus Diphyes Cookson 







95 



Diphyes colligerum (Deflandre & Cookson' 







96 



Other Species .... 







97 



Genus Duosphaeridium nov. 







97 



Genus Tanyosphaeridium nov. 







98 



Tanyosphaeridium variecalamum sp. n. 







98 



