| Presacral VERTEBRA. | I. | II. | III. | IV. | V. | VI. | Vii. |
| Height overall | 0.76 | . 80 | 0.84 | 0.86 | 0.88 | 0.9 | 0.91 |
| Breadth across transverse processes | . 60** | 0.78 | 0.9 | ||||
| Centrum length of | 0.27 | 0.35 | 0.38 | 0.39 | 0.42 | 0.44 | 0.43 |
| Centrum, breadth of posterior end | .30* | 0.31 | 0.31 | 0.3 | 0.31 | 0.3 | 0.3 |
| Centrum, vertical diameter at posterior end | 0.26 | 0.28 | 0.29 | 0.28 | 0.26 | 0.27 | 0.27 |
| Centrum, depth of posterior concavity | 0.05 | 0.07 | 0.08 | 0.09 | 0.08 | 0.08 | 0.08 |
| Centrum, length of pleurantrum | 0.1 | 0.16 | 0.18 | 0.18 | 0.19 | 0.19 | 0.22 |
| Centrum, breadth of pleurantrum | 0.07 | 0.07 | 0.07 | .06* | 0.08 | 0.1 | 0.09 |
| Spine, height above prezygapophyses | 0.26 | 0.29 | 0.31 | 0.33 | 0.37 | .4! | 0.43 |
| Spine, lateral diameter at crest | .11* | 0.18 | 0.2 | 0.28 | .22* | .19* | 0.21 |
| Prezygapophyses, breadth across articular surfaces | 0.19 | 0.21 | 0.18 | 0.18 | 0.16 | 0.16 | 0.17 |
| Prezygapophyses, distance between articular surfaces | 0.05 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 |
| Hyposphene, depth of articular surface+A7 | 0.06 | 0.06 | 0.08 | 0.07 | 0.08 | 0.08 | 0.07 |
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