U. S. GEOLOGICAL SURVEY 



BULLETIN 612 PLATE XIX 





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A, FOSSIL FISH (DIPLOMYSTUS DENTATUS). SHOWING THE BONES. FIN RAYS, ETC.. EMBEDDED 



IN A SLAB OF ROCK TAKEN FROM THE QUARRY. 



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£. FOSSIL LEAF OF THE SWEET-GUM TREE (LIQUIDAMBAR) AS IT APPEARS ON A SLAB OF 



ROCK TAKEN FROM THE QUARRY. 



FOSSILS FOUND IN THE GREEN RIVER (TERTIARYj FORMATION. 



