80 mm. and a vertical width of 75 mm. From the inferoanterior point to the posterior of the articulation with the scapula is 185 mm. and from the margin of the glenoid
Figure 3. Left coracoid, external view. One-third natural size.
cavity to anterior edge of the bone, 105 to 110 mm. The upper portion of the twisted anterior margin is much more lobe-like than in the case of Kritosaurus.
FORE LIMB
Humerus (Figs. 4 and 5)–This bone is of the ordinary type, but it is remarkable for its short length and heavy character. This is the more noticeable in view of the great length of the scapula. The figures and the comparative measurements given herewith require little comment. The great radial crest with its upward aspect is rather striking.
COMPARATIVE MEASUREMENTS OF HUMERUS
Parasaurolophus |
Kritosaurus |
Saurolophus | |
|---|---|---|---|
| Length | 520 | 630 | 610 |
| Width across radial crest | 160 | 170 | – |
| Length of radial crest | 310 | – | 310 |
| Girth of shaft | 255 | 214 |
