DIENEE : TBIAS OF TIIF, HIMALAYAS. 
It is evident from this table that the Triassic Cephalopod horizons 
of the Himalayas are more complete than in any part of the Pacific or 
Boreal regions. It is especially in the ladinic and noric stages that 
cephalopod-bearing beds are rare, being represented by bivalve faunae 
and only very few ammonites in those two zoo-geographical provinces. 
V.-THE INDIAN TRIASSIC PROVINCE. 
It is generally accepted that in "the region occupied by the Hima- 
layas, the Salt Range of the Punjab ; the Pamir, the frontier ranges of 
Yunnan, Burmah and Tonking there existed in the Mesozoic era a part 
of the ancient ocean, known as Tethys, the Triassic faunae of which bear 
quite a distinct local character, which distinguishes them from the 
homotaxial faunae of the Mediterranean and Pacific regions. 
E. V. Mojsisovics^ in 1896 pointed out the succession of the Indian 
Triassic cephalopod faunae and the relation that the Indian province 
bears to the Mediterranean and Pacific provinces. As has been demon- 
strated in the preceding chapter, we are able now to construct a 
more complete and detailed account of the succession of cephalopod 
horizons, although the younger divisions of the noric stage are still 
wanting. 
Now we can also move a considerable step further in the direction of 
defining more clearly the relation of the Indian to the Pacific region 
during the Triassic period. The points formerly obscure in our knowledge 
of the Trias of North America have been settled by the careful investi- 
gations of Hyatt and J. P. Smith, and very important new data respect- 
ing the Triassic deposits of New Caledonia have been published quite 
recently by Piroutet. The large gap between the Trias of the Hima- 
layas and of the western Pacific region has been filled partly by the 
investigations of Leclere, Lantenois and Mansuy in Yunnan and 
Tonking and of Boehm, Hirschi, Voltz in the Sunda Islands. 
The boundary between the Triassic deposits of the Indian and 
Mediterranean regions is very sharp. What is known of Triassic rocks 
in Asia Minor, in the Caucasus and in Darwaz, bears the stamp of the 
normal Mediterranean development. In Asia Minor the Triassic series 
1 E. V. Mojsisovics : Beitraege zur Kenntnis der obertraidischen Cephalopo- 
denfaunen des Himalaya, Denkschr. knis. Akad. d. Wiss. Wien, LXIII, p. 686, — 
Himalayan Fossils, l-c, Vol. II, pt. 2, p. 66. 
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