482 H. W. SHIMER rERMO-TRIASSiC OF XORTHWESTERX ARIZONA 



Here were collected the following fossils : 



Pseudomonotis haicni M. & H. c 



P. inequistriata Beede c 



Pseudomonotis ? sp. r 



Aviculopecten occidentaUs (Sliumard) c 



Aviculopecten f sp. r 



Plagioghjpta canna White C 



Feet 

 4. Alternating cross-bedded sandstone, red shale, white gypsum, and yel- 

 lowish limestone 35-f- 



In the limestones occur frequent external molds, accompanied more 

 rarely by internal molds, of — 



Cf. Plagioghjpta canna White c 



This section appeared in the field to correspond to the upper portion 

 of the Toroweap Valley section. 



A-. SOUTHWEST OF WILD BAND POCKETS 



This section is 3 miles southwest of Wild Band Pockets. 



Feet 



1. Gray cross-bedded sandstone 1.5 



2. Gray conglomerate 15 



3. Yellowish shaly arenaceous limestone S 



4. Greenish shales alternating with gray arenaceous limestone 15 



5. Yellowish arenaceous limestone 15 



These beds are filled witli small siliceous concretions and with fossils, 

 both very commonly stained red. This is the northward extension of 

 the limestone from which the fossils were collected at the section several 

 miles southwest of Sawyers Tank. The lithology, rock succession, fossils, 

 and even the red staining of concretions and fossils, are similar in eacJi 

 section. 



6. Red shale. 



The following fossils were collected from locality 5 ; 



Cf. OrUculoidia nitida (Phillips) R 



Cf. DieJasma hovidens (Morton) r 



Edmondia suhtruncata Meek r 



JVucula penimhonata White r 



Leda oltesa (White) r 



Allorisma sp. r 



Cf. A. gWberti (White) r 



Lima ? sp. a c 



Plagioglj/pfa canna AYhite C 



