692 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.41. 



During the interval tlie material from this area had become widely 

 scattered, but by the aid of the map the specimens were not only 

 assembled, but it was possible to again place all of the elements in 

 their original relative positions. 



Most of the skeleton lay in diagram 5, but a study of the contiguous 

 area represented by diagram 7 showed other elements which could, 

 beyond a reasonable doubt, be associated with the same individual, 

 although collected a year later. The main axis of the skeleton lay 

 in a northeast and southwest direction, and apparently not far re- 

 moved from where the animal died. 



As indicated by the original quarry numbers, the left fore limb and 

 foot and anterior dorsal vertebrae were the first elements discovered. 

 The limb and foot bones lay on the left side of the vertebral column 

 in the positions indicated on the map (see Nos. 83, 84, and 85), the 

 scapula and coracoid being removed some 5 feet to the left of the 

 lower limb bones, but inasmuch as this is the only skeleton of Camp- 

 tosaurus found in this part of the quarry, and as it pertains to the 

 left side, there can be no doubt of their proper association. The 

 vertebral column, which appears quite complete, was disarticulated 

 at intervals. Beginning with the anterior portion of the backbone 

 as preserved, cervicals 78, 77, and 76 were articulated by their 

 zygapophyses and represent, respectively, the eighth and ninth cer- 

 vicals and first dorsal. No. 83, although not interlocked with 78, 

 was but little removed from it, and appears without question to rep- 

 resent the seventh cervical. Two other cervicals. No. 109 and 

 another from which the original quarry number has been erased, 

 are also provisionally associated with this skeleton, and represent 

 the fourth and third cervicals, respectively. On account of the 

 erasure of the quarry number the position of the third cervical could 

 not be found on the map, although it was associated with the bones 

 of this skeleton. The vertebrae of the next series, Nos. 101 to 106, 

 while not interlocked by their zygapophyses, were so closely asso- 

 ciated that there can be no question of then* representmg a series, 

 and when articulated fit one another perfectly. The position of the 

 capitular facets and shape of the spinous processes show them to 

 pertain to the anterior dorsal region. An mterval of a foot or more 

 existed between No. 106 of this series and No. 76. In the next 

 series, Nos. 120 to 136, the vertebrae were found occupying their 

 relative positions and but little disturbed. From the adhermg 

 matrix the writer was able to connect up this series from the mid- 

 dorsal through the sacrals to the fourth caudal, inclusive. Caudals 

 Nos. 168 to 169 and Nos. 158 and 159 were removed somewhat 

 laterally, but were intermediate in size and appear to fill the gap 

 between 136 and 170. Nos. 170 to 174, with their chevrons, were 

 found articulated. Another series of four vertebrae (block 208) was 



