STR4TIGRAPHIC CA.TALOGUE. 246 



CAMBRIAN. 



Ozark Series. 



Linguella lamborni, Meek. 

 Ophileta compacta, Salter. 

 Murchisonia melaniaformis, Shumard. 

 Raphistoma subplana, bhumard. 

 Straparollus valvatiformis, Shumard. 

 Orthoceras czarkensis, Shumard, 

 Lituites complanata, Shumard. 



SILURIAN. 



Calciferous. 



Camerella calcifera ? Billings. 

 Leperditia subl^evis (Shumard). 

 Ptychoparia conica ( Billings ). 



Trenton. 



Receptaculites oweni, Hall. 

 Columnaria stellata ( Hall ). 

 Streptelasma corniculum, Hall. 

 Comarocystites, obconicus, Meek & Worthen. 



shumardi. Meek & Worthen. 

 Ptychocrinus splendens ( Miller ). 

 Calymene senaria, Conrad. 

 Homotrypa arbuscula, Ulrich. 

 Phacelopora pertenuis, Ulrich. 

 Orthis tissicosta, Hall. 



occiden talis, Hall. 

 Platystrophia lynx ( Eichwald ). 

 Strophomena deltoidea, Conrad. 

 Zygospira modesta ( Say ). 

 Belleropbon bilobatus, Sovverby. 

 Cyclonema bilex ( Conrad ). 

 Murchisonia gracilis, Hall. 



major, Hall. 



carinifera, Shumard. 

 Maclurea magna, Le Sueur. 

 Raphistoma leoticularis ( Conrad ). 

 Subulites elongatus, Conrad. 

 Trochonema umbilicata ( Hall ). 

 Endoceras elongatum ? Hall. 

 Gonioceras anceps, Hall. 

 Orthoceras arcuoliratum ? Hall. 



