128 PROCEEDINGS OF THE PALEOXTOLOGICAL SOCIETY 



plow of tlie farmer. A notable feature of the skeleton is the evident incurva- 

 ture and overlap of the tusks at their extremities, which are beveled, one 

 above and one below, in such a manner as to demonstrate that the tusks 

 formed an entire circle about the trunk. 



Some of the results of the explorations of the American Museum of 

 Natural History in China were presented by President ]\Iatthew in the 

 f olio win !>• ])Mper : 



PLIOCEXE MAMMALS OF SOUTH ERX CHIXA 

 BY W. D. MATTHEW AND WALTER GRANGER 



(Ahsti'act) 



A large collection of skulls, jaws, and bones of fossil mammals was obtained 

 by Mr. Granger in the winter of 1921-22 from a locality near Wan-hsien, in 

 the province of Sze-chuan. The fauna is of late Pliocene or Pleistocene age, 

 apparently a forest faeies. Principal mammals are Stegoclan, a rhinoceros 

 near R. indicus. a giant tapir, a species of gaur (Blhos), several antelopes and 

 large and small Cervidje. a pig, a tiger, Hywna, Aeluropus, Helarctos, Cyon, 

 Arctonyx, Viverra, a large bamboo-rat, a rabbit, a large macaque, and a new 

 primate, probably allied to the gibbon. A single molar represents the Chali- 

 cotheres. 



In view of the recent activity in work upon the Mississippian forma- 

 tions of the Mississippi Valley, the next paper presented by the author 

 was of particular interest. Discussion by Messrs. Ulrich, Thomas, and 

 Bassler. 



EARLY MISSISSIPPIAX FORMATIOXS OF THE TYPE REGIOX ALONG 

 MISSISSIPPI RIVER, IX IOWA, ILLIXOIS. AXD MISSOURI 



BY RAYMOND C. MOORE 



{AJ)stract) 



Stratigraphic and faunal studies of the early Mississippian Kinderhook 

 group along Mississippi River and in its vicinity, in southeastern Iowa, west- 

 ern Illinois, and northeastern Missouri, are the basis for a partial redefinition 

 of the group and for the establishment of more definite correlation between 

 exposures. 



The carefully studied section at Burlington, Iowa, which is typical of de- 

 posits in a faunal province of northern affinities, is believec^ to include strati- 

 graphic equivalents of the formations at Kinderhook. Illinois, and in Missouri, 

 the latter representing lithologic and fauna! developments which in the main 

 are not observed to the north. It appears that the deposits of earliest Missis- 

 sippian time in this region are marked by somewhat unusual local variations 

 in the character of the sediments laid down and in the distribution of the 

 invertebrate faunas. In the lowermost stratigraphic divisions which are here 

 regarded as Mississippian there is a prominent faunal element suggestive of 



