]74 O. Feistmantel — A sketch of the history of the [No. 3, 



reference to the Mahadeva and Damuda series ; for we know now that one 

 (and probably two) of the most characteristic plants of the " lower" Gond- 

 wana portion i. e., Glossopteris passes freely into the " upper" portion, 

 so that from this point of view there is a passage from the " lower" into the 

 " upper" which view is also borne out in several basins by the geological 

 relations. On the other hand, however, it is only fair to state, that the 

 most characteristic plant of the " upper" Gondwanas, i. e., the small 

 cycadaceous plant Ptilophyllum, has not hitherto been observed in any 

 bed of the " lower" Gondwanas. 



Within these two broad divisions of the Gondwana system minor groups 

 have been distinguished in the various basins of the system, of which a 

 synopsis may be thus represented. 



A. Upper portion of the Gondwana system. 



f Umia group = Tripetty sandstones. 



_ , , ,. . . ^ J Chikiala sandstones. 

 Jabalpur division.* 1 _ , . 



1 Jabalpur group. 



l^Bagra group. 



C Kota-Maleri beds = Denwa group. 



J ? Chari group. 

 Intermediate groups.* ] ^ Tr 



° L | Kagavapuram = Vemaveram = 



^Sripermatur = Utatiir plantbeds. 



!Eajmahal group = Athgarh sandstones = 

 Budawada group = Sironcha sandstone = 

 Pachmari sandstone = Dubrajpur group. 



B. Lower portion of the Gondwana system. 



a. Panchet division, f Panchet group and = Almod beds. 



("Mangli shales, Kamthi and Raniganj group and 



, -r. , ,. . . , J Biiori horizon. 

 o. Damuda di vision. f] x J , , ,_, , 



l Iron shales (Motur horizon.) 



L.Barakar group. 



f Karharbari beds — 

 c. Talchir division. f 3 Talchir shales— ) 



(Boulder bed Talchir group. 



* These three divisions are proposed by myself. 



t These three divisions were introduced by Mr. W. T. Blanford, 1878. 



