344 



HISTORICAL GEOLOGY. 



the brownstone houses of New York city. A few bones 

 and teeth of reptiles, however, have been found, and these 



FIG. 295. Anchisaurus colurns, x i&, from Connecticut sandstone. (After Marsh.) 



confirm the conclusions already given. A few tridactyl 

 tracks also have been recently found, similar to those of 

 the Connecticut patch. In Fig. 296 we give a restoration 

 of fish from the New Jersey sandstone. 



FIG. 296. Diplurus longicandatns, x J. (After Dean.) 



3. Virginia and North Carolina Patches. These 

 are very different from the Northern patches. They form 

 the Richmond and Piedmont coal-fields of eastern Vir- 

 ginia (Fig. 297) and the Deep Eiver and Dan River coal- 



