TABLE 1. Measurements of the cheek teeth of the holotype of Gordodon kraineri, NMMNH P-70796.
| Cheek Tooth | Length (crown height) (mm) |
Width (anteroposterior) (mm) |
| 2 | 3.5 | 1.8 |
| 3 | 3.4 | 2.2 |
| 4 | 3.7 | 2.0 |
| 5 | 3.4 | 1.7 |
| 6 | 3.3 | 1.9 |
| 7 | 3.7 | 2.0 |
| 8 | incomplete | incomplete |
| 9, ~10, ~11 | missing (saw cut) | |
| ~12 | incomplete | incomplete |
| ~13 | 2.1 | 1.4 |
| ~14 | 2.1 | 1.4 |
| ~15 | 1.5 | 1.5 |
| ~16 | missing | 1.4 |
| ~17 | 1.5 | 1.4 |
| ~18 | 1.3 | 1.5 |
TABLE 2. Vertebral metrics of the holotype of Gordodon kraineri, NMMNH P-70796, in mm. LC = maximum length of the centrum, post HC = posterior height of the centrum, Post H = height from lower edge of posterior centrum to top of postzygapophyses, LIC = length of the intercentrum, NS length = length of the neural spine measured from pedicle base to tip along its curve.
| Zone | Vertebra number | LC | Post HC | Post H | LIC | NS length | LIC/LC% | Post HC/LC |
| cervical | 2 | 27.9 | 15.1 | 26.3 | 6.7 | 15.5 | 24.01 | 0.54 |
| cervical | 3 | 29.6 | 17.8 | 28.9 | 75 | 0.60 | ||
| cervical | 4 | 29.4 | 19 | 28.2 | 6.5 | 116 | 22.11 | 0.65 |
| cervical | 5 | 28.3 | 19.5 | 29.7 | 6.1 | 134 | 21.55 | 0.69 |
| dorsal | 6 | 28.2 | 31.9 | 5.9 | 183 | 20.92 | ||
| dorsal | 7 | 28.2 | 15.2 | 31.9 | 217 | 0.54 | ||
| dorsal | 8 | 27.1 | 5.3 | 244 | 19.56 | |||
| dorsal | 9 | 27.5 | 15.7 | 27.9 | 4.5 | 271 | 16.36 | 0.57 |
| dorsal | 10 | 27.4 | 15.4 | 4.1 | 298 | 14.96 | ||
| dorsal | 11 | 26.8 | 314 | |||||
| dorsal | 12 | 348 | ||||||
| dorsal | 13 | |||||||
| dorsal | 14 | 410 |
TABLE 3. Calculated mass of some edaphosaurids. Gordodon, this study; all others Romer and Price (1940, table 5).
| Taxon | Mass (kg) |
| Gordodon kraineri | 34 |
| Edaphosaurus novomexicanus | 63 |
| E. boanerges | 83 |
| E. cruciger | 166 |
| E. pogonias | 186 |
