34() P. K. Raymond — Aye of the Tribes Hill Fonnation. 



the Ozarkian of Hain and Ulriclrs section,* so that there is a 

 place for the Tribes Hill above the Gasconade, if it is to be 

 placed in the Ozarkian instead of the BeekMiantown. 



All that we now know abont the fauna of the Ozarkian is 

 what is given by UJrich in tlie pai)er first referred to in 

 this note, and by Sclnichert in " l*aleogeography of North 

 America." If the fauna is to be defined as consisting of 

 " (^ainbrian trilobites and Ordovician gastropods and cephalo- 

 pods," then the fauna of the Tribes Hill certainly has an 

 Ozarkian aspect, with AsupJieUiis, Syniphyauriifi. and llari'isia 

 as the common trilobites. 



Ottawa, Sept. 1910. 



* Bull. U. S. Geol. Survey, No. 267, 1905. 



