224 PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



very progressive characters, but of uncertain taxonomic position. Ictops 

 dakotensis and Pahcoloc/iis hoydeni are represented by skulls and skeletal 

 parts which, because of their perfection, will add to our knowledge of these 

 tiny creatures. 



TERTIARY ARTI0DACTYL8 FROM THE MARSH COLLECTION 

 BY RICHARD S. LULL 



{Al)stract) 



Numerous remains of a small horned antelope, apparently new to science, 

 collected by the Yale Museum expedition of 1914 in western Nebraska, are 

 described, together with a novel method of combining the mounted skeleton 

 of the animal with the plastic restoration in the flesh. No characters appear 

 which debar this form from direct ancestry with the existing prong-buck, 

 AnMlocapra. A new species of Blastomeryx, contemporaneous with the above, 

 of which the type skull was collected by Professor Marsh in 1872, is also 

 described. 



At 5.30 p. m. the section adjourned for the day. 



On Wednesday, December 31, the sectional meeting was resumed at 

 2.30 p. m. and the following papers were presented: 



OLIGOCENE EQUID^ IN THE MARSH COLLECTION 

 BY JOHN P. BUWALDA 



{Ahstract) 



A preliminary statement indicating that the Oligocene Equidae material in 

 the Marsh collections, derived from the John Day region of eastern Oregon 

 and from the Great Plains, and consisting of several complete skulls and a 

 considerable quantity of teeth and partial jaws, represents about half of 

 the described species of Mesohippus, Miohdppus, and Archeohippus. At least 

 two forms are recognized as new. The genus Mesohippus appears to grade 

 insensibly into the genus Miohippus in the material studied. 



PAWNEE CREEK BEDS OF COLORADO 

 BY F. B. LOOMIS 



{Abstract) 



This paper takes up the position of the Pawnee Creek Beds in the series 

 and particularly points out that they should be divided into a lower bed, 

 "Pawnee Creek," and an upper level, which is of Pliocene age. 



NEW SPECIMEN OF THE PLEISTOCENE BEAR ARCTOTHERIUM FROM TEXAS 



BY W. D. MATTHEW 



{Al)stract) 



A specimen found by C. H. Sternberg, during the past season, in the Rock 

 Creek formation, Briscoe County, Texas, two miles north of the famous 



