688 



(JKOLOGY 



a wider area. The principal subdivisions recognized in Britain 

 and Germany are the following: 



Jyritain 

 Rhaetic 

 Upper Trias 

 Lower Trias 



Germany 

 Keuper 



Muschelk:ilk 

 Bunter 



Northern Europe. The Bunter formation of Germany was 

 deposited chiefly in lakes, inland seas, and on land, as shown by 

 the fossils, the beds of salt and gypsum, and the dune structure of 

 some of the sandstone. The name has reference to the high colors 

 of the formation, red predominating. Toward the top of the forma- 

 tion, thin beds of marine origin are intercalated locally with the 



Fig. 469. Sketch-map of Europe showing areas of sediment :if ion in tin- 

 early part of the Triassic period. The broken lines represent areas of 

 non-marine deposits; the full lines, areas of marine deposits. (After 

 De Lapparent.) 



