THE PRE-ADAMITE EAETH. 



384. Land flora and fauna. 385. Close of the period. NINTH 

 JURASSIC PERIOD. 386. Mineral character of the stage. 387. Synop- 

 sis of the animal kingdom. 388. General character of the fauna. 

 389. Marine genera. 390. Land animals. TENTH JURASSIC PERIOD. 

 391. Mineral character of the stage. 392. Synopsis of the animal 

 kingdom. 393. Outlines of land and water marine fauna. 394. 

 Close of the period. The Cretaceous Age. 395. Mineral char- 

 acter of the Cretaceous formation. 396. Section of the strata between 

 the Vosges and Paris. 397. Resolution of the formation into seven 

 stages. 398. Nomenclature and thickness of the stages. 399. Dis- 

 cordance and isolation of the stages. 



THIRD JURASSIC PERIOD. 



353. THE traces from which a convulsion closing the preceding 

 period has been inferred, differ in nothing from those mentioned 

 in the former period. 



The strata deposited by the seas of this period, called by 

 D'Orbigny the Toarcian stage, from the town of Thouars 

 (Toarcium), in France, correspond with the upper Lias of British 

 geologists, the Brauner Jura, and Opalinusthon of the Germans. 

 Its extent can be traced on the map (fig. 153), by the shading 

 marked 9. 



354. The new creation, exclusive of the Annulata, is shown in 

 the following table : 



Synopsis of the Animal Kingdom (exclusive of the Annulata) during the 

 Third Jurassic Period. 



The Mollusca and Eadiata consisted of 288 species. 



355. The outlines of land and water did not suffer any con- 

 siderable change. Besides the genera of marine reptiles already 

 mentioned, the strange forms of the Mistriosauri and Macrospondili 



