154 



ri.ATK [. 



Page. 



ISiitustoiiKi ntiiiiiis (James) 14N 



1. .Surface. X 0. I'piier Wayiu'svillc. 



la. A sn))fr()iulesceiit siieciineii. natui-al size. Lower Liberty. 



11). Typical tangential section, sliowini; commnnicatinn imres. 



X IS. T'jjper AVaynesvlUe. 

 Ic. A subraniose siiecimen, natural size. Lower Liberty. 

 1(1. Lonjjitndinal section, showing deep mature roiiion and spiny 



acanthopores. x is. T^ower Liberty. 

 Ic. Tyiiical lon.uiludinal section, x is. I'piicr Wayncsville. All 



sjiecimeiis from WeisV)ur.s;, Ind. 



