BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Vol. 29, pp. 631-636 DECEMBER 30, 1918 



PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



PALEOGEOGRAPHIC SIGNIFICANCE OF THE CENOZOIC 



FLORAS OF EQUATORIAL AMERICA AND THE 



ADJACENT REGIONS ^ 



BY EDWARD W. BERRY 



(Read before ilie Paleontological bocieiy December SI, 1917) 



CONTENTS 



Page 



Introduction 631 



Upper Cretaceous 6.32 



Midway Eocene flora of North America 632 



Wilcox Eocene flora of Nortli America 632 



In general 632 



Claiborne (Auversian) Eocene flora of southeastern North America.. 633 



Jackson (Priabonian) flora of southeastern North America 633 



Catahoula and Vicksburg (Oligocene) floras of North America 633 



Tertiary floras of South America 633 



Summary 634 



Note 635 



Introduction 



111 order not to occupy too much time or confuse my auditors with 

 details, it has seemed best to give a brief summary of the known fossil 

 floras bearing on the problem of intercontinental land connections be- 

 tween North and South America, followed by the conclusions which it 

 has seemed might be legitimately drawn from their evidence. 



This evidence is not presented in detail, since it has been given at 

 length in publications recently printed or now in press.^ 



^ Manuscript received by the Secretary of the Society Auftiist 22, 1918. 



2 E. W. Berry : The physical conditions and age indicated by tlic flora of the Aliun 

 Blufif formation. U. S. Geol. Survey Prof. Taper 98 E, 1916, 



: The Lower Eocene floras of southeastern North America. Idem, 91, 1910. 



: The IMiocene citronelle formation of the dulf Coastal Plain and its flora. 



Idem, 98 L, 1916. 



: The Catahoula sandstone and its flora. Idem, 98 M, 1916. 



: The Upper Cretaceous floras of the eastern Gulf rej-ion. Idem (in press). 



: The Midde and Up|)er Eocene floras of southeastern North America. Idem 



(in press). 



(631) 



