142 



CAMBRIAN BRACHIOPODA. 



Detailed stratigraphic distribution of Cambrian and Ordovician Brachiopoda — Continued. 

 Oklahoma: Axbuckle Mountains — Continued. 



a The section ofthe Reagan sandstone was measured on the north side of Arbuckle Mountains, in sec. 2, T. 4N., R. 13 W. The Reagan is much 

 more fossiliferous and has a greater development in the section northwest of Fort Sill, in Comanche County, than it has on the south side ofthe 

 Arbuckle Mountains, in Carter County. 



