Geological Survey of Alabama. 51 



TABLE V. 



WOOD'S BLUFF GROUP. 



This group has even a greater thickness than the Claiborne Sand, and 

 is fully as crowded with fossils, though there is not so great an assemblage 

 of species. The lower part (twelve to fifteen feet thick) is a mass of 

 Turritellas (Turritella carinata? Lea, Heilpr.), the other species found 

 in it being comparatively few in number. 



The bed has been traced by Dr. E. A. Smith from near Turnbull, in 

 Monroe County, westward almost to the Mississippi line. Numerous 

 localities have been examined, the list below gives the species from each. 

 In some cases, the exact bed is not designated in the collections from 

 Wood's Bluff; these are given in a separate column. " Wood's Bluff 

 upper" is the green sand-bed, two to four feet thick; "Wood's Bluff 

 lower" that part below the five to eight feet of barren clays shown in 

 section . 



