NO. 8 



SMITHSONIAN EXPLOR.VTIONS. I913 



19 



500 aiul 600 separate fossil bones were obtained, many of them of 

 lariie size. The most notal)le discovery was a new Ceratopsian ' or 

 horned (hnosaur, the smaUest of its kind known. There were por- 

 tions of hve in(,Hviduals of this animal reco\ered, representing- nearb/ 

 all parts of the skeleton, so that it will be possible to mount a com- 

 ])osite skeleton for exhibition. In this connection, it is perhaps of 

 interest to know that, although Ceratopsian fossils were first dis- 



Fk;. 20. — Fossil 1)eds as exposed on Alilk River. Montana. The small 

 Ceratopsian dinosaur was found in the l)re;U<•^ in the foreground. Photo- 

 graph by Gilmore. 



covered in the Rocky Alotmtain region in 1855, and portions of a 

 hundred or more skeletons have been collected, this is the first indi- 

 vidual to be found having a complete articulated tail and hind foot. 

 It thus contributes greatly to our knowledge of the skeletal anatomy 

 of this interesting group of extinct reptiles. 



.\nother noteworthy find was a partial skeleton of one of the 

 Trachodont or (luck-l)illed dinosaurs. This animal was onlv recentlv 



^ Mr. (iilmore"s description of this e.xtinct reptile is to he found in the 

 Smithsonian Misc. Coll., \V)1. 6,^, Xo. 3. 1914. 



