FOSSIL REMAINS. &3 



1 have done likewise. I am, however, inclined to include in this 

 zone the next 150 to 200 feet of sandstones which contain bands of 

 ferruginous conglomerate, as in other parts of the country I have 

 obtained some of the typical fossils of the lower bed in a higher 

 layer of ferruginous conglomerate. Dr. Noetling would, I understand, 

 welcome this inconclusion, but the impossibility, in that case, of 

 mapping the upper limit of the zone and the great help the 

 mapping of a basal zone is in the interpretation of the structure 

 of the Yenangyaung oil-field induced him to. confine the zone 

 to the bottom bed of conglomerate. From this lower conglo- 

 merate Dr. Needing has obtained a number of fossils, but as I had 

 only a small area of the bed to map and the 

 season was far advanced, I was unable to spend 

 much time in searching the bed on the southern side of Minlindaung. 

 I obtained, however, part of the jaw of a Cervus sp. and fragments of 

 bones of Crocodilis sp. or Guvialis sp. and of Trionyx sp., and I saw 

 numerous very much broken fragments of the bones of very large 

 animals, but of these I was unable to get any fragments sufficiently 

 well preserved to take away. 



2. The above bottom zone passes gradually up into the second 



zone which is composed of similar sandstones, 



Zone 2. Its character. 



but has no ferruginous bands. Especially in the 



lower part it contains numerous concretions, like those in the beds 



below, and pieces of fossil wood ; pieces of these concretions and 



of the fossil wood are scattered over the surface of the country. In the 



upper part of the zone these concretions and the fossil wood become 



less and we find present the smaller calcareous concretions, which 



occur in many fantastic shapes like roots, sponges, bones, etc., and in 



this way the beds pass into the zone above. From this zone the only 



_ . . vertebrate remains I have found are vertebrae of 



Fossil remains. 



a crocodilian animal which were lying on the 

 surface of the ground. 



3. In the third zone there are the same white and yellowish-white 

 Zone 3. Character and current bedded sandstones, but the concretions 



are chiefly the calcareous ones resembling roots, 



( 63 ) 



