NO. 2241. NEWLY MOUNTED i^TEGOSAVRUS STENOPS—GILMORE. 387 



brate Paleontology. This restoration was an enlargement to life- 

 size of a small statuette modeled by Charles R. Knight, the well 

 known artist and animal sculptor. Although according to our pres- 

 ent knowledge of the skeletal anatomy it is now loiown to be inac- 

 curate in some respects, taken all in all it presents a most striking 

 picture of the supposed life appearance of this curious animal. 



In 1913 the type-specimen of Stegosaurus stenops Marsh the most 

 perfect skeleton known was prepared for exhibition. This skeleton 

 as now displayed (see pi. 61), shows the precise relative position 

 of every bone as originally found. Some important parts are miss- 

 ing, such as the distal half of the tail, hind feet, and some minor 

 bones, yet it is by far the most perfect example of a Stegosaurus 

 skeleton that has yet been discovered. The retention of the greater 

 number of the dermal plates in their original relationship makes the 

 specimen invaluable as a guide for the proper articulation of these 

 puzzling elements in subsequently discovered specimens. 



Although some bones are missing and others are slightly disar- 

 ranged the position of the skeleton (see pi. 61) is that of an animal 

 which died a natural death, for such disarrangement as exists can be 

 attributed to the natural shifting of the bones rather than to their 

 having been torn apart by any of the contemporary predatory car- 

 nivores. 



This exhibit of Stegosaurian specimens is now made complete by 

 the recent addition of the mounted skeleton previously described, and 

 the arrangement in the exhibition hall of these important specimens 

 as now displayed, is well shown in the reproduced photograph 

 (pi. 61), The three specimens — i. e., the mounted skeleton, the skele- 

 ton in relief, and the life-sized restoration — constitute a most com- 

 prehensive and interesting exhibit of this curious dinosaur. 



It is furtlier supplemented by a small model (see pi. 63) restora- 

 tion which I prepared in 1915 of S. stenops one-twelfth natural size, 

 based on the type of that species. In this model was incorporated 

 all of the evidence relating to its external appearance, accumulated 

 during several years study of a large series of Stegosaurian remains. 

 It was particularly gratifying to find, after mounting the actual 

 skeleton, that but slight changes w^ere suggested as necessary either 

 in the proportions or pose of the model. 



When compared with the earlier restoration made by Knight 

 (compare pis. 62 and 63), certain differences are to be observed. The 

 most important of these is a shortening of the body, thus bringing 

 the fore and hind limbs closer together; a reduction in the number 

 of erect skin plates; the transposition of the largest plate of the 

 series from above the hips to a point above the base of the tail; a 

 reduction in the total length of the head, and the changing of its 

 flat upper surface to a slightly convex contour which is more in 



