, 



258 LIFE OF THE PLEISTOCENE 



b. Vertebrate Animals 



The mammoth and mastodon were widely distributed in Iowa during the 

 Yarmouth interval. Records of the remains of these animals, more or less 

 definite, are listed by Miss Anderson, 45 from whom the following records are 

 taken: 

 Mammut americanum. 



Fayette County; Clermont, in gravel pit, possibly Buchanan gravels. 

 Henry County; in valley of Big Cedar Creek, Salem Township; the creek 

 had washed the bones from an old bog. Also near bank of Skunk River. 

 Lee County; in Lost Creek, Washington Township, near Denmark. 

 Elephas (species not indicated). 



Mills County; railroad cut between Glen wood and Pacific Junction, not 

 far from Keg Creek, 5 to 8 feet below the surface in the upper part of the 

 boulder clay below the loess. Malvern, in railroad crossing, from lower 

 part of loess. 

 Pottawattamie County; in section 34, apparently in loess. 

 Powershiek County ; in loess, 6 feet below the surface. 

 Mammoth or Mastodon. 



Shelby County; in well near bank of small stream about three miles from 



Defiance. 

 A mammoth tooth is also recorded from Given, Mahaska County "from 



the general area of the Kansan drift. ' ,4B 

 Hay (Geol. Iowa, XXIII) adds the following data relative to the mammal 

 fauna of the Yarmouth interval. The writer cannot see, however, why the 

 fossils from Denison (page 431) should be referred to the Sangamon interval. 

 They seem more logically to belong to the Yarmouth interval, as the deposits 

 appear to overly Kansan drift. The same is true of the Correctionville mater- 

 ial. 

 Mammut americanum 



Crawford County, Denison, Tooth (page 382) 

 Elaphas primigenius 



Powershiek County, Grinnell. In cellar, 5-8 feet below surface, cor. Main 

 and 4th streets, teeth and other bones. Many bones half mile from last 

 locality, at depth of about 20 feet, (pages 444-446). 

 Crawford County, Denison. Teeth (page 431) 

 Woodbury County, Correctionville. Tooth, (page 449). 

 Proboscidian 



Warren County, Indianola. Elephant bones one and one-half miles east 

 of city, 6 feet below bottom of a ravine (page 84). 



44 Augustana Lib. Pub., No. 5, 1905. 

 «• Amer. Geol., XXXI, p. 262. 



