105 



Continuation of Column No. 5. 

 TABLE V. 



11 



12 



13 



14 



Pleistocene of Conrad, 



This is 200 feet above the level of the sea. 



The Marine Shells, are Saxicava, Sanguinolaria, 



Modiola. 



In the Valley of Lake Charnplain. 

 Fifteen feet above the sea are the Ostrea, Virgin- 

 iaua, Venus mercenaria, Pyrula carica, Anomia, 

 Astarte. 



In Maryland, Virginia and North Carolina. 

 100 feet above the level of the sea are found Nucula 

 Portlandica, Mactra, Mya. 

 Bangor, Maine. 



Post-Pliocene of Conrad, 



12 feet above the sea, Gnathadon cuneatus. 



Neuse Rtv., N. Carolina, Potomac River, Maryland. 



Miocene of Conrad, 



100 feet above the level of the sea, 17 per cent, of 

 recent shells, the rest are ancient, but none of this 

 division are found in the Eocene below. 

 Eastern counties of N. Carolina, Virginia, Maryland. 



Eocene of Conrad, 



200 feet, above the level of the sea. An equivalent 

 to the "London and Pans Basins,"no recent species. 

 Clairbourne, Alabama; Natchez, Miss. ; Wishita 

 River, La. ; Fort Washington, Piscataway and Up- 

 per Marlborough, and in Maryland. 



Chalk. 



This rock is wanting in North America. There 

 is in the Lyceum of Natural History of New York, 

 a gigantic shark's tooth, (Carcharias Megalodon,) 



from Cuba, presented by Mr. , this may 



belong to this series ? 



Green Sand or Jersey Marl. 



This series contains the teeth and bones of Sau- 

 rians, Sharks, &c, viz., Mososaurus, Geosaurus 

 Mitchelii, Sphyrajna. Lamna phcata, lanceolaia, 

 Mantel!!, and aciineata. Shells : Gryphon, Exogyra, 

 Terebratuia Sa\ii, Pecten quinque-costalus. 

 Mt Mitchill.Neversmk IIills.IV J. 



b 15 



VVealden. 



This series is not found in North America. 



* Fresh Water. 



1 4 



