226 



CAEBOXIFEEOUS CEPHALOPODA OF IRELAXD. 



Horizon. 

 Lower Limestone 



Lower Coal Measures (Ganister) . 

 Lower Limestone. 



Middle Limestone. 

 Lower Limestone. 

 Upper Limestone. 

 Lower Limestone. 



Millstone Grit. 

 Middle Limestone. 

 Lower Limestone. 



Middle Limestone. 

 Toredale. 

 Lower Limestone. 

 Middle Limestone. 

 Lower Limestone. 



Toredale. 

 Lower Limestone. 

 Coal Measures. 

 Lower Limestone. 



Upper Limestone, or Toredale ?. 

 Lower Limestone. 



Middle Limestone. 



Lower Limestone. 



Toredale. 



Lower Coal Measures (Granister). 



Middle Limestone. 



Lower Limestone. 



