Chap. II.] general topography and geology. 31 



The following is a brief recapitulation in descending order of the vari- 

 ous beds above-mentioned, with their divisions, together with the thick- 

 ness, mostly calculated from their dips, and the dimensions of their 

 out-crops. 



Thick- 

 Name. Description of Beds. Fossils. ness in 



feet. 



I. Upper Panche't f Coarse sandstones and conglome- } TI , .,., 



(? Rdjmah&l group) \ rates .. . j Unfossiliferous ... .500 



f Several ferns distinct "I 

 from Damuda I 



f Coarse sandstones, very false- forms, Tmniopteris \ 



TT Panchet oroup 1 bedded, and red clays. At the! Sphenopteris. Schi- ', . „„ 



II. ±-a*chet group < bage greenish and grey shales i zoneura— Reptilian \ 1 ' 500 



(. and fine sandstones ... and fish remains — I 



III. Damuda group. 



JEstheria (Posi- 

 \_ donia). ...j 



( Coarse and fine sandstones, mostly f Vertebraria, Trizygia, ~\ 

 false-bedded and felspathic — | Glossqpteris, Pecop- | 



a. Rdniganj series -^ shales — coal seams. The latter ■{ teris, Schizoneura, } 5,000 



j frequently continuous over con- | Phyllotheca, &c. : all | 

 ^ siderable areas ... ^ plants. J 



C Black carbonaceous shales, with ( Eo + s , sils . abundant^ 

 a*. Ironstone shales < numerous bands of clay iron-^ reserved Gfosso- f 1 ' 400 



**' I. teris, &c. ...J . 



f Coarse conglomerates, with white") ri . . \r t -\ 

 h t „™ n„™ '* na J sandstones, numerous coal seams f ^^ssoptens, vene- l 



b. Lower Damudas -J of very irregular character) thin _ >■ &*», Zeugophyl- V 2,000 



(. ning out at short distances ...J ' ' ""-' 



f Coarse sandstone, white, or with") 

 a bluish-green tint at top, fine j 

 greenish-grey mud, silt, sandy j 

 tv TI,™™ romiD J shales, and fine sandstone con- ! Very rare, a few stems, ) onn 

 IV. ialchir group ...i taining undecomposed felspar ; f seeds? &c. ...j 800 



at base rolled masses of great 

 size, 15 feet in diameter, occur j 

 ^ in fine silty beds ...J 



Total ... ... 11,200 



In describing these beds in detail, it will be more convenient to 

 treat of them in ascending order, that is, to commence with the 

 Talchir group. 



