| Measurement | M. desmarestii | M. desmarestii | M. luciae | O. victus |
|---|---|---|---|---|
| (NHM 50.11.30.5-6) | (NHM 55.12.24.201) | (NHM 53.12.16.2) | (NHM 97.12.26.1) | |
| *The tail of NHM 53.12.16.2 is incomplete. | ||||
| Greatest skull length | 55.2 | – | – | – |
| Condylo-incisive length | 53.6 | – | 47.5 | – |
| Breadth of occipital condyles | 9.6 | – | 9.8 | – |
| Length of diastema | 17.8 | 16.9 | 15.6 | 7.8 |
| Palatal bridge | 14.0 | 12.8 | 13.0 | 6.2 |
| Length of incisive foramen | 9.4 | 8.3 | 7.8 | 5.4 |
| Breadth of incisive foramen | 3.3 | 3.1 | 2.7 | 2.1 |
| Length of maxillary molars | 8.2 | 9.4 | 7.7 | 4.5 |
| Breadth of first maxillary molar | 2.5 | 2.6 | 2.5 | 1.4 |
| External alveolar breadth | 10.7 | 10.5 | 10.4 | 5.6 |
| Cranial height | 15.7 | 14.6 | 13.7 | 9.3 |
| Rostrum length | 21.0 | – | – | 11.2 |
| Rostrum breadth | 11.4 | 10.6 | 9.0 | 6.1 |
| Least interorbital breadth | 9.1 | 9.7 | 9.4 | 5.1 |
| Orbital length | 17.4 | 17.5 | 15.6 | 11.0 |
| Zygomatic breadth | 30.6 | – | 26.9 | 16.7 |
| Breadth of braincase | 16.9 | – | 15.1 | 11.4 |
| Breadth of zygomatic plate | 7.8 | 6.1 | 6.1 | 3.9 |
| Head–body length | 257 | 312 | 261 | 94 |
| Tail length | 254 | 278 | 145* | 121 |
| Hindfoot length (with claw) | 45 | 59 | 50 | 25 |
| Length of internal side of ear | 18 | 20 | 18 | 14 |