286 PALEONTOLOGY OF NEW JERSEY. 
them as distinct. Mr. Meek appears to have not only considered them 
as distinct, but to have had Mr. Conrad’s authority for the statement, and 
for their occurrence at Shark River. | 
Formation and locality: In the upper layers of the Upper Green Marls, 
at Shark River, and Squankum, New Jersey. Collection at Rutgers College. 
Fig. 2.—Nautilus Cookana.—One-halt natural size, 
