FOSSILS OF THE O'OLITE. 



Fig. WS.O'slrea del- 

 to'idea. 



Fig.llQ.Pholadomy'a 

 a'cutico'sta. 



Fig.lW.Ez'ogy'ra 

 vir'gula. 



58. The lithographic stone of Solenhofen, in Bavaria, is referred 

 to the upper strata of the Jura'ssic system ; in it are found an im- 

 mense quantity of fossils, reptiles, particularly, pterodactyls, fishes, 

 insects, plants, &c. In some parts of upper o'olite are beds of a 

 highly bituminous shale (locally known as Kimmeridge coal) ; in 

 the latest calcareous beds of the Portland group are found cycti'dear 

 (fig. 113). 



Pig. \\%. Terfbra'tula sella. Fig. Il3.Za'mia feneo'nis. 



59. The o'olitic or Jura'ssic system of rocks is met with in Eng- 

 land and on the continent of Europe, but is not represented in 

 North America, where the transition from the new red sandstone 

 to the greensand and other rocks of the creta'ceous period is abrupt 

 No rock answering to the Lias has yet been discovered in the 

 United States. 



58. To what geological group does the lithographic stone of Solenhofen 

 belong ? What is Kimmeridge coal? 



59. In what part of the world is the o'olitic system of rocks found 7 la 

 it known in the United States? 



ti* 



