GEOIiOGICAL SURVEY OF PENNSYLVANIA, KEPOKT P4, 1889. 



A DICTIONARY 



OF THE 



Fossils of Pennsylvania 



AND NEIGHBOEING STATES 



NAMED IN THE 



REl'ORTS AND CATALOGUES OF THE SURVEY. 



Compiled for the convenience of the citizens of the State 

 By J. P. LESLEY, State Geologist. 



3000 FIGURES, MOSTLY FACSIMILE COPIES OP THOSE PUBLISHED BY H. D 

 ROGERS, HALL, CONRAD, VANUXEM, EMMONS, LOGAN, DAWSON, 

 BILLINGS, MATTHEWS, HITCHCOCK, NEWBERRY, MEEK, COL- 

 LETT, WORTHEN, ROMINGER, D. D. OWEN, COX, LYON, 

 SAFFORD, FONTAINE, LESQUEREUX, WOLCOTT, 

 LEIDY, COPE, AND OTHERS, AND SOME 

 NEW SPECIES, DRAWN AND DE- 

 SCRIBED BY G. B. SIMPSON. 



HARRISBURG: 



PUBLISHED BY THE BOARD OF COMMISSIONERS 

 FOR THE GEOLOGICAL STTRVEY. 



1889. 



