470 The American Naturalist. [Me 
Mr. Whiteaves’ report comprises 105 pages of text illustrated by 15 _ 
full page plates. The classification followed, with few exceptions, is 
that adopted by Dr. Karl Zittel in his Handbuch der Paleontologie. 
(Contributions to Canadian Paleontology. Vol. I, Pt. IV, 1892). 
Jura and Trias in Taylorville, California.—Professor Hyatt 
gives the following preliminary results of an examination of four 
different collections of intervebrate fossils from the Jura and Trias of 
the Taylorville region in California. 
A general comparison of the Trias of Taylorville with that of Idaho 
and of the Star Peak range in the Humboldt region, Nevada, shows 
that the Idaho Trias hasa well marked Triassic fauna, with fi 
cephalopods recognized in Europe by Mojsisovics, Steinmann and 
Karpinsky, as belonging to the lower part of the Triassic system. 
This fauna appears to be more nearly the equivalent of that of the 
‘Werferner beds of the middle Buntersandstein of the German Trias 
than of any other. 
The Trias of the Star Peak range contains an unmistakably younger 
fauna. The species show a parallelism with the Muschelkalk instead a 
of the Saint Cassian stage, as has been supposed. 
The Trias of Taylorville is quite as interesting as that of the other 
two localities, and it is suggestive that its age, as indicated by the fos- 2 
sils, is that of the Noric and Karnic series in the upper Trias. : 
The Lower, Middle and Upper Jura, are represented by character- 
istic fossils which can be closely compared with representative 
European species. No remarkable or entirely new types occur, such 
as have been found among the vertebrata of this continent. A 
On comparing the Taylorville with that of Aurora, Wyoming, and 
of the Black Hills, it is found that the latter were deposited in 
same basin, the species being largely identical, and that they can te 
spoken of together as having characteristice of the fauna of | 
pavia or Oxfordian in the upper Jura of Europe. 
The supposed Callovian of Mount Jura has no species in commod 
with those of Aurora or the Black Hills. This accords with the 4 
_ tinct fauna of the Bicknell sandstone and the Hinchman Tuff, 
would go to show that there was no direct connection between 
upper Jurassic faunas of the Rocky Mountain region. 
The Oolite of the Rocky Mountain region is too little known to Pi 
mit comparison. Dr. White has described a few fossils found by 
Peale near the lower cafion of the Yellowstone in Montana. 
