PLATE 29 



Orthoceras sp. Undet. 

 Page 123. 



Fig. 1. End of septum showing siphuncle. 

 Fig. 2. Side view of four segments. 



(Snyder Creek shale of Callaway County.) 

 Figs. 3, 5, 6. Fragments of two undeterminable species. 



(Snyder Creek shale of Callaway County.) 



Cyrtoceras sp. undet. 

 Page 124. 



Fig. 4. An imperfect and much-weathered specimen. (X2). 

 (Snyder Creek shale of Callaway County.) 



Gomphoceras sp. undet. 

 Page 125. 



Fig. 7. The only specimen collected from the Mineola. (X 4/5). (Ralls County.) 



