Species. 



"VeX" 



'lif 



X2 







Nodule be 

 The Red ( 



tr 





- 









« 







65 



^ 



47 



a 



1 





Norwich C 



:rag... 

 Crag. 



r - 



Mesozoic. — Mr. A. Smith Womlwani has recognized three reptil- 

 ian bones in a collection of vertebrate foMtlfl from the Cretaceous for- 

 mation of Bahia, Brazil. Two of the bone? represent the articular end 

 of a large Pterosanrian quadrate, while the third is a Plesiosaurian. 

 The pterodactyle is the first of the kind in the Southern hemisphere, 

 and the discovery of the Plesiosauri adds another important locality to 

 the known distribution of that order. (Ann. & Mag. Nat. Hist., Oct., 



1891.) According to R. S. Tarr, the Permian of Texas in its most 



typical development was a completely enclosed sea. This is proved by 



gypsum and salt be accounted for. It would also explain the redness 

 of the clays and sandstone beds. The peculiar sickly gray color of 

 the limestone is that of an inland sea deposit, ami the abundance of 

 vertebrate fossils of both land and inland sea types is thus accounted 

 for. The small break between the Carboniferous and the Permian 

 shows that in point of time the -formations were immediately associated, 

 the marked difference in the nature of the beds, and the character of 

 the fauna being due rather to changed conditions than to actual lapse 

 of time. (Am. Journ. Science, Jan., 1892.) 



