DISTRIBUTION OF CRETACEOUS INVERTEBRATES 



601 



Table of Distribution of Cretaceous Invertebrates — Continued 





Mancos 







■E 



« 



<D 

 V 



11 



X 



!i 





Lower 



Upper 





ta 





o 

 o 



u 

 o 



3 

 1 



X 



n 

 _o 



o 



c 

 c 



c5 



2 



o 



c 

 o 



4 



O 

 O 



9 

 O 



5 

 5 



o 



01 



6 



o 



Ul 



es 



u 

 3 



G 



7 



X 

 X 



o 



a 



8 



o 

 « 

 u 



<s> 



3 



o 



9 



a 



a: 



10 

 X 



e 

 o 



X 





12 



Lunatia sp 



X 



Mactra alta M. and H 













Mactra sp. cf. M. formosa M. & H 









X 









X 



X 

 X 







sp. cf. M. nracilis M. & H 



















" warrenana M. «&. H 





















X 



sp. (large form) 



















X 

 X 







" sp 





X 









X 





X 



X 



? 



X 



X 



Martesia ? sp 











Metoicoceras sp. cf. sicallovi (Shu- 

 mard) 











X 

 X 















Metoicoceras sp 



X 























Modiola sp 

















X 



X 



. . . 



Mortoniceras sp. cf. M. delaivarense 

 (Morton) 













X 











Mosasourus sp 











... 













X 



? 



X 



Mytilus sp 









X 

















Nautilus dekayi Morton 











X 

 X 









? 





Nautilus sp 













Nemodon sp 























X 

 X 



? 



Nucula sp 













X 



X 



X 









Odontobasis sp 



















Odontofusus ? sp 



















X 





Ostrea congesta Conrad 



















X 





" elegantula Newb 









? 





? 



X 





X 







" inornata 







lugubris Conrad 



X 



X 

 X 







X 















sp. cf. 0. lugubris Conrad 











X 







" patina M. & H 

















X 

















X 

 X 









? 



subtrigonalis E. & S 























" {Alectryonia ) sp 



















X 

 X 



X 





" sp 



X 



X 

 X 

 X 



X 

 X 









X 







X 



X 



Pachydiscus n. sp 









Panopwa sp 











X 











? 



Pectem sp 



X 

 X 







X 













Plwladomya sp 

















Physa ? sp 















X 



... 



? 





Pinna lakesi White 



















. . • 



Pinna petrina White 



X 

 X 



X 

 X 





X 



X 

















Pinna sp 





X 

 X 







X 



X 

 X 



. . . 





X 



" planum Hvatt 













X 

 X 



X 



X 

 ? 



X 

 X 



" sancarlosense PIvatt. . . 









? 





■ • « 



whitfieldi Hyatf. 









X 

 X 



sp 





X 









X 

 X 





X 







" sp. (large form) 



















X 

 X 



. , , 



X 



X 1 















• • • 







Prionocyclus tcyomingensis Meek . . 





• . . 





. . « 



• • . 



. . • 



, , , 



• • • 



. • • 



• • 1 



