442 New York State Museum 



Climate of the Cenozoic 



Early Tertiary (Eocene) climate, as judged by the 

 life of various areas, appears to have been cool to mild 

 temperate. There is evidence of gradual lowering of 

 the temperature through Middle Tertiary time. This 

 cooling continued through late Tertiary (Pliocene) and 

 towards the end of the Pliocene the lowering of the tem- 

 perature was marked, with perhaps the beginning of 

 glaciation in the highest mountains, and culminated in the 

 Glacial period of the Quaternary. 



Literature. For this chapter are recommended the vari- 

 ous text books in which other references will be found; 

 also Willis and Salisbury ('10; ch. 10-14) and Schuchert 

 ('10). Among the New York State museum publications 

 are Miller ('24) containing many references, Brigham 

 ('29), Fairchild ('07, '09, '12, '17, '18 etc.), Goldring 

 ('22), Hartnagel ('12), Hartnagel and Bishop ('22) and 

 Woodworth ('05). A very useful reference is "The Last 

 Glaciation" by Ernst Antevs (Amer. Geog. Soc. Research 

 Series No. 17, 1928. 292p.) 



