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" (="H. priscus"; 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.