NEHRASKA OEOLOUICAL SURVEY 



Length of second phalanx, % inch (20 mm). 

 Length of ungual phalanx, 1% inches (30 mm). 

 Height of sacral spines, above the acetabulum, about 4*4 inches 

 (115 mm). 



According to these measurements, which are sufficiently exact 

 for the present purpose, the hind quarters of the creature were 

 between thirty and thirty-four inches in height. 



The genus cannot be fully defined until more material and data 

 are available. As to the affinities of Syndyoceras it seems to re- 

 semble Protoceras of the Oligocene more closely than any other 

 known form, but the relationship seems remote. The antelope 

 seems to be a related ally. For lack of full information it will be 

 placed in the Protoceratidae, but further study will doubtless war- 

 rant assigning it to an entirely new family. 



This adds another to the long list of fossils for which Nebraska 

 has become famous in every center of learning, and now that the 

 Morrill geological expeditions are again operative it is believed 

 that many of these fine specimens which hitherto have been going 

 to the eastern colleges and to European museums will begin to find 

 a place in the museum of the state where they by right belong. 



Before another year has passed a portion of the first wing of a 

 new fireproof museum will be in readiness to receive and properly 

 display all such specimens in the state collections. 



The University of Nebraska, Sept. 1, 1905. 



