278 



THE DEVONIAN OF MISSOURI. 



List of Species identified from the Devonian Quartate at Rolla, Missouri 





1 

 Illinois 



2 

 Ken- 

 tucky 



3 

 Mich- 

 igan 



4 

 Ohio 



5 

 New 

 York 



Coelenterata: 





X 

 X 



X 

 X 



X 

 X 

















Acervularia rugosa (E. and H.) 



Amplexns yandetti (E. and H.) ._ . . . 

 Favosites w inch ell i , Rominger 



X 



x • 



X 

 X 

 X 

 X 



X 

 X 

 X 

 X 

















X 







X 

 X 



X 



X 

 X 





Favosites turbiuatus (f) Billings 





X 

 X 

 X 

 X 



H* 



X 

 X 



X 



X 

 X 

 X 

 X 



-) 



X 

 X ' 























Molluscoidea: 



Cystodictya gilberti (?) Meek 



Slropheodonla demissa (Conrad). . . 



Rhipidomella vanuxemi, Hall 



Centronella glansfagea, Hall 



X 

 X 

 X 

 X 



X 

 X 

 X 







X 

 X 





X 

 X 

 X 

 X 







X 





Martinia maia (?) (Billings) 





Nucleospira concinna, Hall 



Mollusca : 



Acinodesma occidentale (?), Hall. . . . 



Conocardium cuneus (Conrad) 



Conocardium ohioense, Meek 



X 



X 

 X 



X 

 X 



var. 



X 

 X 





X 





X 



X 

 X 

 X 



X 





X 





Better ophon newberrvi, Meek 



? 















X 



X 





X 

 X 

 X 

 X 

 X 





Loxonema robustum (?), Hall 









X 

 X 

 X 

 X 

 X 



X 





Callonema bellatida, Hall 



















Tentaculites scalarifonms, Hall .... 

 Coleolus tenuicinctiim, Hall 



X 

 X 





X 



H 



X 



H 



OrtiioCctas sp 

































Arthropoda: 



Phacops cristate, Hall 



X 

 X 

 X 



X 

 X 

 X 







X 



Proetus clarus, Hall 









Dalmanites calypso, Hall 





X 



X 



*H indicates that species occurs in the Hamilton at that particular locality. 



