NO. 1666. OSTEOLOGY OF CAMPTOSAURUS—OILMORE. 201 



made, and it was only after a most tedious search that the relative 

 230sitions of those shown in fig. 1 were determined. There was no 

 data found whereby diagrams 9 and 10 could be accurately located, 

 and the area worked by Reed can only be indicated in a general way. 



rOSITION OP^ THP] BONES OF CAMPTOSAITRUS HltOWNI AS FOUND IN 



THE QUARRY. 



The most complete specimen considered in this 2:)aper is a new 

 species, C'amptosaurus browni (Cat. No. 4282, U.S.N.M.), which was 

 collected by Mr. Fred Brown from quarry No. 13, -8 miles east of 

 Como, Albany County, Wyoming, in 1885 and 1886. The accom- 

 l^anying map (see Plate G) shows plainly how the bones of this 

 individual were found as they lay embedded in the ground. The 

 diagrams were drawn (as explained previously) at the time of dis- 

 interment, and the painstaking care bestowed on them is worthy 

 of the highest commendation. Nearly a quarter of a century has 

 elapsed since this skeleton was collected. During the interval the 

 material from this area had become widely scattered, but by the aid 

 of the diagrams the specimens were not only assembled, but I was 

 enabled 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 vertebra? were the first elements discovered. 

 The limb and foot bones la}^ 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 

 Camptosaurus 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 disarticu- 

 lated at intervals. Beginning with the anterior portion of the back- 

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

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

 cals and first dorsal. No. 83, although not interlocked with 78, w^as 

 but little removed from it, and appears without question to represent 

 the seventh cervical. Two other cervicals. No. 109 and another from 

 which the original quarry number had been erased, are also pro- 

 visionally associated with this skeleton, and represent the fourth and 

 third cervicals, respectively. On account of the erasure of the quarry 



