344 



SMITHSONIAN INSTITUTION 



Geological and Geographical Distribution 



Number of known species 



(Open figures indicate American, those marked ( ) European) 



Formation 



Taxocrinidae 



u 

 C 



o 



American 



Approximate 

 European 

 Equivalents 



co 



3 



a 







X 











1-. 

 Ph 



CO 



3 

 C 

 "C 

 







| 







c 



■O 



CO 



3 

 C 

 u 

 

 



cU 

 3 

 W 



to 

 3 

 C 



u 



O 



a 

 H 



CO 



3 

 C 





 O 

 >> 



.c 



Oh 



CO 



3 



a 









 .s 

 u 



>> 



c 







O 



H 



CO 



3 

 O 

 t- 



cu 



'c 

 o 



-a 



u 



u 



u 



■s 



o 



J 





Huiiet 







2 



2 

 I 

 I 



3 



4 

 (2) 



3 



3 

 1 



2 



(I) 

 I 



(I) 



3 

 2 



32 



St Louis 





Middle 

 Carb. 









/Mountain 

 1 limestone 





Kinderhook-Waverly 



c 

 'H 



O 

 > 



CU 



Q 





Upper 



Middle 

 Lower 



I 





5 



2 



(3) 

 (3) 



(2) 

 3 







19 





Helderbergian 





c 



u 



_3 



Niagaran 



Wenlock 



(3) 

 1 



2 

 (I) 



(i) 









9 









C 



'o 



'> 

 o 



-o 

 >-. 



O 



Trenton 



Caradoc 



2 













2 









45 

 (17) 



5 

 (3) 



2 



(I) 



9 



(7) 



17 



(4) 



4 



8 

 (2) 





European species 





62 



8 



3 



16 



21 



4 



10 



62 





