v.- 1 I.I i 
KINDLE. 
MANSFIELD ORE-BED SECTION. L2] 
The section as a whole -how- a fauna of distinctly Chemung type, 
Cyrtvna ha/miltonensis is the only Hamilton survivor appearing in it. 
The faunules of the different parts of the section do not offer any 
sharp contrasts in composition. The accompanying chart, showing 
the distribution of species in the section, indicates that dominant 
species, or those appearing abundantly or commonly in any zone are 
usually found to range through a number of zones or the entire section. 
