ECONNAISSANCE IN COLORADO AND UTAH 671 
Valley anticline brings the Triassic beds to the river level at a short 
distance below Moab. 
Another collection’ of fossils was made in 1901 by Mr. L. M. 
Prindle, on the road about half a mile northwest of the locality we 
studied, from strata visibly belonging to the section given. By Mr. 
Prindle’s courtesy, I am permitted to indicate the forms identified 
by Mr. Girty in his collection, in column III of the table. 
The only other locality where we observed fossiliferous Pennsyl- 
vanian beds is on the southwestern side of Sindbad Valley at the 
same point where Peale found bluish limestone carrying Producti, 
Crinoid, and Corals. The specimens collected by him were aban- 
doned during an attack by Indians, so that the definite character 
of this fauna was not determined. In his report, Peale givesa section 
(29, p.71) in which the fossil-bearing strata are placed beneath shaly 
sandstones having an estimated thickness of 3,500 feet, and above 
these are the gypsiferous strata of the valley floor. ‘The fault zone 
parallel to the axis of the valley is more complex than Peale supposed, 
and it seems probable that the fossil-bearing strata form a narrow and 
vertically upturned block thrust up almost to the level of the Ver- 
milion Cliff sandstone, and that no continuous section exists in the 
valley by which the position of these fossiliferous beds in the whole 
section can be established. ‘They are bounded by a fault on the north- 
east, as well as on the southwest. ‘These fossil-bearing beds were 
also examined by Mr. A. C. Spencer in 1899, and a collection of fossils 
was made. 
From the bluish limestone ledges of Sindbad Valley the fossils 
indicated in column V of the table, p. 672, were obtained, either by 
Mr. Spencer or by our party. 
In view of the meager statements of Powell and Newberry as to 
the sections examined by them, and the isolation of the Moab and 
Sindbad Valley occurrences, the most satisfactory basis for a correla- 
tion of these Pennsylvanian sections lies in comparing the fossils 
collected at the several localities. Through the kind assistance of 
Mr. G. H. Girty, who has examined all the material except the 
collection by Newberry, I am able to present in tabular form the 
lists of all known fossils from the localities named. For comparison 
the known occurrence of the species of the lists in the Hermosa forma- 
