LA TOUCHE : GEOLOGY OF NORTHERN SHAN STATES. 



the crest of which has been denuded away, and occupy an elongated 

 oval tract (in the southern slopes of the range. Fossils were collected 

 by Mr. Datta at two localities in this area : the first about one and 

 a half miles south-east of Loi-nawk (23° 5' : 98° 4') , near the western 

 end of the area, and the other one and a half miles north by west 

 Fosgiis of Hoi-hok (23° 4' : 98° 8'), near the eastern 



extremity. The fossils are very poorly preserved, 

 but include large numbers of Bryozoa, probably a Rhinidkttja, of 

 which perhaps more than one species is represented. Other fossils, 

 found at both localities, include plates of Caryocrinus and Heliocrinus 

 sp., Diplotrypa sp., Rafinesquina imbrex Pander, Orthis subcrateroides 

 Reed, 0. testudinaria Dalman, (?) 0. irravadica Reed, and in addition, 

 at the locality north of Hoi-hok, numerous specimens of Clitam- 

 bonites cf. squamata Pahlen, and a doubtful cast of Poramboniies 

 intercedens Pander. Several casts of the calyx of a simple turbinate 

 coral, resembling Petraia (Lindstrcemia) also occur here. 



Proceeding southwards, the lower Naungkangyis appear from 

 beneath the Plateau limestones at the foot of 



tionflfn, Plate 24) Se °" the Loi " len ran g e on tne P ath running north 

 from Man-Se, in the Namma coal-field, to Tileng 

 (Loc. 104, H 1). Where first seen they are very poorly exposed, the out- 

 crop being very narrow and nearly vertical, but a few specimens of an 

 Orthis, one of which appears to be 0. subcrateroides Reed, were collected 

 here by Mr. Datta. From this point the band runs diagonally up 

 the side of the scarp to the eastward, and approaches the crest about 

 three-quarters of a mile south of Pang-me (H 1), where it is exposed 

 on the spur running down to the Nam-Pawng valley, on a little 

 saddle connecting the crest with a conspicuous knoll, the latter 

 consisting of the Chaung-Magyi sandstones. It then runs along the 

 hill side parallel to the crest, its course being marked by a ravine, 

 and is found again on the next spur to the east in a similar position, on 

 the saddle just north of the knoll marked 4,744 feet on the one inch map. 

 Hence it continues to the east-north-east, parallel to the crest of the 

 range, which it crosses at the peak marked 5,239 feet, on the path from 

 Loi-len to Na-Nang, and beyond this along the north side of the 

 crest to Panghti (I 1), where it crosses again to the south side. 

 Throughout the whole of its course the band is vertical or nearly 

 so, and in places even inverted, dipping at a very high angle to the 

 south and apparently underlying the Chaung-Magyi rocks forming 

 the southern slopes of the range. The fossils that occur in it are 



