318 GEOLOGICAL RELATIONS OF THE ROCK SYSTEMS 



From the Talcheer rocks wherever seen, only a very few specimens 

 have been obtained, and those often not in a good state of preservation. 

 If then we take the uppermost system, being that whose flora we 

 know best, as a standard, let us see what evidence, or even what clue 

 towards evidence, we can get from it as to the geological epoch of the 

 rocks in which these fossils occur. 



In these Rajmahal beds we have the following group of plants : — 

 Of Algce, Lichens or Fungi, none. 



Equisetum, 2 4 



Cyclopteris, 1 



Dictyopteris, 2 



Pecopteris, 5 



Sphenopteris, 3 



Tceniopteris, 3 



14 



Cardiocarpon, 1 



Lycopodites, 3 



Walchia, 1 



Cycadites, 2 



Pterophyllum, 9 



Pulaozamia, 8 



Stangerites, 2 



Voltzia, 



Brachyphyllum, 



46 

 Dadoxylon (wood,) 

 Palaoxylon, 

 Taioxylon. 

 Cycadeous wood, 

 True Dicotyledonous angiosperm wood, 3 or 4 varieties. 





21 



.. 1 





.. 1 









2 



