THE NEBRASKA PERMIAN 367 



the river, and they were also quite accessible for study. The 

 chertv band as seen at Blue Springs can be seen on every bluff, 

 and the limestones above resemble the stone quarried at the Blue 

 Springs quarries. But above all of these bands, there are several 

 that have not been seen to the north. The following section 

 was made at the state line. 



No. 7. Yellowish oolitic limestone - - - %y, f eet 



No. 6. Light colored limestone, shelly - - - 4 feet 

 No. 5. Yellowish limestone - 5 f eet 



No. 4. Light colored limestone with some chert - 13 feet 

 No. 3. Very chertv limestone - - - . z 5 f eet 



No. 2. Indurated marls, variegated - - - 15 feet 



No. 1. Unexposed to the river - 20 feet 



Total " - 73}i feet 



No fossils were found below the cherty bands. Nos. 5, 6, 

 and 7 contained a great many fossils, No. 7 being especially rich 

 in species as well as in numbers. The following is a partial list. 

 Many of the fossils were so frail that by the time they had been 

 packed, shipped, and unpacked no one could identify them, 



Nautilus ecce?itricus M. and H. 



Metacoceras dubium Hyatt. 



Metacoceras sp. 



Myalina aviculoides M. and H. 



Myalina peratte?iuata M. and H. 



Myalina permiana Swal. 



Myalina sp. 



Semiuula arge?itea Shep. 



Pseudomonotis haivni M. and H. 



Pseudoiuonotis hawni ovata M. and H. 



Pseudomonotis sp. 



Meekella striaticostata Cox. 



Derby a crass a M. and H. 



Derby a robttsta Hall. 



Aviculopecten occidetitalis Schum. 



Aviculopecten sp. 



Bakevellia parva M. and H. 



Pinna sp. 



Yoldia subscitula M. and H. 



Schizodus sp. 



