34 



SYNOPTICAL TABLE. 





English Cretaceous. Foreign Cretaceous. 1 te 



„.UH 



'1 





cZ 



": 



TABLE 







/ 





== ^;i'" 



1 



--^1 



SHOWING THE PER 











6 SI 











5 



OENTAGE OF THE 





Species. s 



Chalk. g 3 



pa 



e_ 



£ 











3 



specie3 in the 

 Chalk, Detritus, 

 AND Gault. 



\o. 



Chalk. 

 Red Chalk. 

 Charing Det 

 Chalk-marl. 

 Gault. 



i " $ . ^ ^ 6 

 5 tn S &\S ps ;d 



9 



.3 



.a 

 O 



O 





S 1 



i 



E w 



9 



5 





6q 



"a 

 O 



1 



Cythere Hilseana . H + + H 



h +-- 



- 



+ 



+ 



-! 



+k 



+ 











- 



6- 



14^5 



2 



C. punctatula . . H h + + - 



h - + 



- 



- 



+ 



+ +|. 













1-8 



1^5 



2- 



3 

 4 



p, 1, i -1- -1- j-l 

























2'5 



V5 



— 



C. Faba . . . . + 







— 



- 



+ 





. . . 















■1 



- 



5 

 6 



C. Bairdiana . . . 



Cythereis interrupta H 1 H - 



[- 





































- 



- 



- 



- 



-- 



-- 



- 



- 



+ 





■75 



•5 



5^ 



^ 



C. Gaultiua . . . h 



C. macrophthalma . H 

































•5 



8 



-- + 























■35 



- 





9 



C. triplicata . . . + 1 r - 







- 



- 



- 



- 



+ . 













■7b 



2- 



2' 



10 



C. quadrilatera . . H \ H - 



+ + 



- 



+ 



+ 



+ 



-- 



-- 



- 



- 



+ 





2- 



7^5 



41^5 



11 C. Lonsdaleiana . + 



- 



- 



- 



- 



- 



— 



- - 



- 



- 



+ 





4- 



- 



•1 



12,C. cornuta . . . + 1 1+ - 



+ 



- 



- 



+ 



- 



-4 













- 



2-5 



- 



13 C. ciliata . . . + - + +i + 









+ 

















3^ 



13- 



20^5 









14,C. alata .... + h — — 



+ 























1-5 



•1 



- 



ISiBairdia subdeltpidea + h +*~ 



+-++-+- 



+ 



+ 



+ 



- 



- H 



- + 



+ 



+ 



- 



+ 



27- 



21^ 



- 



16B. Siliqua . . . + - + - - 





- 



- 



- 



- 



-- 



- + 



- 



+ 







4- 



1-5 



- 



l/B. Harrisiana . . + 1 



- + 



- 



- 



- 



- 



-- 



- - 



- 



+ 



- 



+ 



■75 



5^5 



- 



18B. angusta . . . + h 1- 



+ + 



- 



- 



+ 



- 



- H 



- + 



+ 



+ 



- 



+ 



•1 



■1 



1-5 



19|B. triqiietra . . . + — 



-4- 





















■35 



— 



— 

















































— 



■1 



— 



2l'Cytherella oYata . + + + + + 



+ -++-+- 



+ 



+ 



- 



+ 



- - 



h .. 











38-5 



26- 



8- 



22 C. truncata . . . H h + + 



23JC. Williamsoniana -{ h + + 



24 C. appendiculata . h 



-- + - + 













1- + 











3- 





?,• 























()-5 



3-5 



2- 





























•1 



























■1 































•1 



■1 































