290 LA TOUCHE : GEOLOGY OF NORTHERNSHAN STATES. 



so confirm Dr. Noetiing's identification of Conocardium among the 

 tpecimens submitted to her, as well as the presence of two other 

 genera which had survived from Palaeozoic times, viz., Modiolopsis 

 and Paloeoneilo ; the latter an American genus which, as we have 

 seen, was particularly abundant in the Devonian Wetwin Shales. 

 There is indeed a very close lithological resemblance between the 

 shales of Wetwin and the more argillaceous portions of the Napeng 

 beds, and in the absence of fossils it would be quite impossible to 

 distinguish between them. But, as Miss Healey remarks — 



" the presence of Paloeoneilo can cause no surprise since Bittner has shown 

 that several species from St. Cassia n belong to it." (Op. cit., p. 3). 



Moreover, the occurrence of Fteria (Avicula) contorta Portl., the 

 zone fossil of the Rhaetic, with Grammatodon Lycettii Moore and Gervillia 

 prcecursor Quenst., both characteristic fossils of the same horizon, as 

 well as the presence of several species that closely resemble Rhaetic 

 forms, taken together with the clearly developed Mesozoic facies of the 

 whole fauna, as shown by the abundance of such genera as Myophoria, 

 Pecten, Cardium, etc., is more than sufficient to outweigh the evidence 

 derived from the survival of one or two Palaeozoic forms. 



The fossils described by Miss Healey are entered in Table 11 

 as having been collected at three localities, 

 Kyaukkyan, Hson-oi, and Napeng. As a 

 matter of fact those from the last named place were collected from 

 a number of different spots, details of which will be found in the 

 Tables attached to Miss Healey's Memoir (Op. cit. p. 88 ). J But 

 as the beds are practically continuous over the area shown on the 

 map, and almost certainly belong to one horizon, while there is 

 hardly an outcrop exposed along the paths in any direction in 

 which fossils may not be found, I have thought it unnecessary to 

 repeat these details here. (Illustrations of a few of the new species 

 are shown in Plate 27.) 



1 These are all situated within the square E 3 on the map, with the exception of 

 Nawngleng (Loc. 14, E 2). The following are the names of the localities shown on the 

 map : — ■ 



Loc. 15 Na-peng. 



16 Naunghkam. 



17 Nawnghkio. 



18 Nampen. 



19 Hkawkwo-lam. 



20 Na-nim. 



21 Nawngkwang. 



22 Namhu-ikkyi 

 2:{ Loi-lam. 



