RANGE AND DISTRIBUTION OF RETICULARIA LAEVIS 193 



direction, but it may be stated that it will probably be found to 

 coincide with the distribution of the Ithaca facies of the Nunda. 



The maximum range of the spe.cies, as shown by the New York 

 sections, extends from near the base of the Nunda into the lower 

 Chemung. It has, however, been found at a post -Nunda horizon in 

 only two of the many sections in which it is known. 



