TEXT-BOOK 



OF 



PALEONTOLOGY 



EDITED BY 



CHAKLES R. EASTMAN, A.M., Ph.D. 



PROFESSOR OF PALEONTOLOGY IN THE UNIVERSITT OF PITTSBURGH 

 AND CÜRATOR AT THE CARNEGIE MUSEUM, PITTSBURGH 



ADAPTED FROM THE GERM AN OF 



KARL A. VON ZITTEL 



LATE PROFESSOR OF GEOLOGY AND PALEONTOLOGY IN THE UNIVERSITY OF MUNICH 



SECOND EDITION REVISED AND ENLARGED BY THE EDITOR IN COLLABORATION 

 WITH THE FOLLOWING-NAMED SPECIALISTS : 



R. S. BASSLER, W. T. CAL^LW, A. H. CLARK, H. L, CLARK, J. M, CLARKE, 



J. A. CUSHMAN, W. H. DALL, A. HANDLIRSCH, K. T. JACKSON, A. PETRÜNKEVITCH, P. E. RAYMOND, 



R. RUEDEMANN, C. SCHÜCHEBT, J. T. SMITH, F. SPRINGER, T. W. VAÜGHAN, C. D. WALCOTT 



\ 

 I 



VOL. I. 

 WITH ABOUT 1600 ILLUSTRATIONS 



MACMILLAN AND CO., LIMITED 



ST. MAETIN'S STREET, LONDON 



1913 



