42 
Records of the Geological Survey of India. 
[voi,. IX. 
Mr. Sapovta, in his “ Vdgetaux fossiles du Terrain jurassique,” in the Paleontologie 
Frangaise, 1872-1875 (Nos. 1-18), mentions in several places our fossil plants from the 
Kajmahal hills. Of Mr. Schiniper's Paleontologie Vegdtale, 1867-1874, I have already said 
wlmt was necessary, and repeat only that our Rajmahal fossils, and also those of the 
Damuda, must be eliminated from his list of the fossil plants of the Oolitic period, and 
be put in their proper places. 
In 1875 we have again a note by Mr. Zigno on the Rajmahal Flora in Verhandl. d. k. k. 
geolog. Reiclisaust. No. 17, where he again approves the Lias sic age of the Rajmahal 
Flora. 
I must finally mention a paper by Mr. H. F. Blanford, published in the Quarterly 
Journal, Geolog. Society, 1875, November, with the title, “ On the age and correlations of the 
plant-bearing series of India, and the former existence of an Indo-Oeeanic Continent”, in 
which, however, regarding the flora all is repeated from the former publications of the Survey, 
and therefore requires the same corrections. I will only mention that all the lists of fossil 
plants given by Mr. Oldham were only provisional; and that many of the genera were 
subsequently determined to be different; which, of course, also changed the conclusions to be 
made from them. 
It is thus obvious that I do not agree in identifying the horizon of the Ivach with that of the 
Rajmahal series in the Rajmahal hills, on the Godavari and near Madras. Nor is it at all 
probable that the Damuda series are Permian; as the Schizoneura, which is so very 
frequent in the upper Damudas, is not known anywhere in Permian strata, but in 
Trias. I may also mention the recent discovery in the Baralcar group of a Voltzia and 
of a very distinct single-pinnate Neuropteris, Bgt., which till now is nowhere known in the 
Palaeozoic (viz., Permian) strata, but only in the Triassic (vis., Bun tsandstein—gres 
bigarre) rocks* ; proving, besides other evidence, that the lower Damudas also are of 
mesozoic age, as I will show more fully in a later paper. From these facts one will be also 
able to make further conclusions on the age of the Australian plants, as being identical with 
our Damuda plants. 
Description of a cbanium of Stegodon ganesa, with notes on the sttb-genus and 
allied forms, by R. Lydekher, B. A. (Cantab), Geological Survey of India. 
The cranium described in the present paper is a remarkably fine and nearly perfect 
specimen belonging to Stegodon ganesa (Falconer). It was discovered by Mr. Theobald in 
the grey sandstone beds of Maili, belonging to the middle Siwalik series. In describing this 
specimen 1 have of necessity been led to examine the other allied species, and in the present 
paper intend giving a few notes on the sub-genus. 
The sub-genus or genus (P) Stegodon as originally founded by the late Dr. Falconer, 
comprised four species, viz., S. insignia, S. bombifrons, and S. ganesa, from the Siwaliks, and 
S. cliftii, from the tertiary beds of the Irawadi: subsequently. Professor Owen(Q. Jour., Geol. 
Soc., Lon., 18/0, p. 417) added two other species to this list, viz., S. orientalis and S. sinen¬ 
sis, founded on fragments ol molar teeth brought from China. In spite of the reputation of 
the founder oi these last two species, I cannot help doubting their validity as being 
based on the characters of tlie teeth alone, as these are so very similar in all the species ; at 
the same time, I should be by no means surprised that, if at any time the crania of the 
Chinese species should bo discovered, it (or they) would he found to differ from the Indian 
species. 
Schimper and Hougeot; Monographic des plantes fossiles du gres bigarrd dcs Vosges, 1847, 40 plates. 
