4 MEMOIRS OF THE CARNEGIE MUSEUM 
With the ninth from the posterior of this series of vertebrae there was an interrup- 
tion, and the three vertebrae shown at C. 572 were found closely adjacent to the an- 
Scalé about peel lo 1 inch 
Fic. 1. Diagram of west end of that portion of bone quarry near Canyon City, Colo., worked by W. 
H. Utterback, showing the positions in which the types of Haplocanthosaurus priscus (No. 572, A, B, C) 
and H. utterbackii (No. 879) were found. The shaded bones pertain to a different genus. A. 572 femur, 
pelvis, sacrum and nineteen anterior caudals ; B. 572 nine posterior dorsals ; C. 572 first dorsal and last 
two cervicals. 
terior of the nine dorsals mentioned. ‘These three vertebree were interlocked by their 
zygapophyses and consist of the first dorsal and the last two cervicals. They evi- 
