15 
decurved, edentulous portion long. Thirty-two presacral vertebrae; 9 co- 
ossified sacrals. Radius longer than humerus. Ilium elongate, not 
markedly curved. Pubis with long expanded blade. Ischium long, 
bluntly pointed. Femur longer than tibia. Three layers of ossified 
tendons along spines of posterior dorsals. Integument over the sacral 
region composed of non-imbricating tuberculate scales arranged in clusters 
of the larger scales between which are minute tubercular scales. Vertebral 
formulae C. 12, D. 20, S. 9, C. 5+. Fore limb lengthened, digital formulae 
3, 3, 2, 2, all terminated by flattened hoof-like unguals. 
CONDITION OF THE SKELETON AS NOW MOUNTED 
The specimen was found in a sandy clay that was easily removed, 
but many of the bones were covered with a tenacious layer of clay iron- 
stone, and in removing it much of the detailed structure was lost or ob- 
scured. The flattening of many of the bones indicates that it has been 
subjected to tremendous pressure. 
When the skeleton was found, the tail posterior to the fifth caudal 
vertebra, the distal ends of the ischia, and phalanges of the hind feet had 
been eroded away. The remainder of the animal, as now prepared and 
mounted in the Victoria Memorial Museum, is precisely as it was when 
found in the ground, except that the head and neck, which were originally 
bent downward and backward more toward the fore limbs, have been 
raised as shown in Plate II. The skeleton lay on its right side, with the 
knees drawn up and the fore limbs stretched out. The scapulae were 
closely appressed to the sides of the ribs and probably lie in normal position. 
Both sternal bones are present and retained nearly in their proper relations 
with the remainder of the pectoral arch. The coracoids are badly damaged 
and little can be determined from them. 
The complete articulated vertebral column back to the sixth caudal 
is present and except for lateral crushing is in a good state of preservation. 
The thoracic ribs of both sides are present, and although straightened by 
crushing and lacking small parts of their distal ends, are in a good state 
of preservation, and in most instances remain articulated with their res- 
pective vertebrae. The short ribs of the right side of the series are, how- 
ever, buried in the matrix. Parts of all the cervical ribs of the left 
side, excepting the first, third, fourth, and twelfth, are present. 
The humeri are much distorted and the left appears to be longer than 
the right, probably due to an undue lengthening of a restored section above 
the distal end. The other bones of the fore limbs and feet are well preserved 
and all are present except a few phalanges. 
The sacrum and pelvic arch are complete except the distal ends of 
the ischia. The hind limbs have been much flattened by crushing, and 
the right astragulus and calcaneum are missing. The metatarsals are so 
much restored as to be of little value scientifically and it appears that 
most if not all of the phalanges are missing. These and the missing 
caudal vetrebrse in the mount have been supplied by the substitution of 
miscellaneous bones representing many individuals. 
Of particular interest is the preservation of the ossified tendons on 
each side of the neural spines along the back, and of a considerable area 
of epidermal impressions above the hips. From the foregoing, somewhat 
68675 — 2 | 
