SYNOPSIS 

ORGANIC REMAINS 
OF 
THE CRETACEOUS GROUP 
OF 
THE UNITED STATES. 
ILLUSTRATED BY NINETEEN PLATES. 
yO WHICH IS ADDED AN APPENDIX, CONTAINING A TABULAR VIEW OF THE TERTIARY 
FOSSILS HITHERTO DISCOVERED IN NORTH AMERICA. 
BY 
SAMUEL GEORGE MORTON, ™. D. 
MEMBER OF THE AMERICAN PHILOSOPHICAL SOCIETY; OF THE ACADEMY OF NATURAL 
; SCIENCES OF PHILADELPHIA; CORRESPONDING MEMBER OF THE 
4 NEW YORK LYCEUM OF NATURAL HISTORY; OF 
THE ALBANY INSTITUTE, &C. 

**Je regarde les caraetéres d’epoque de formation tirés de l’analogie des corps organises, comme 
de premiére valeur en Geognosie, et comme devant l’emporter sur toutes les autres diiférences 
quelque grandes qu’elles paraissent.” Au. BroneGniarRt. 
PHILADELPHIA: 
KEY & BIDDLE, MINOR STREET. 
W. P. Gibbons, Printer, 
1834. 
