| Measurements of Skull, Specimen 3191 | |
|---|---|
| Skull, length from front of nasal to back of lambdoidal crest | 211 mm. |
| Skull, width across zygomatic arches | 172 mm. |
| Skull, width across postorbital processes | 78 mm. |
| Skull, height above molar 2 | 84 mm. |
| Dentition, from upper inc. 1 to molar 3 | 140 mm. |
| Dentition, from lower inc. 1 to molar 3 | 136 mm. |
| Mandible, height under molar 2 | 35 mm. |
| Mandible, height under the articulation | 118 mm. |
The atlas and axis are wanting, and the characteristics of the other cervicals have been given under the generic description.
| Measurements Specimen 3291 | ||
|---|---|---|
| Cervical 3, | length of centrum | 18 mm. |
| Cervical 5, | length of centrum | 18 mm. |
| Cervical 6, | length of centrum | 21 mm. |
| Cervical 6, | height from base of centrum to top of spine | 74 mm. |
| Cervical 7, | length of centrum | 21 mm. |
| Cervical 7, | height from base of centrum to top of spine | 55 mm. |
Fig. 56. Cervicals. 5, 6 and 7—
½ natural size.
Fig. 57. Dorsal 6 and 7—
½ natural size.
The first three or four of the thoracic vertebrae are represented only by their neural arches and spines. There were at least fifteen in the series, for I have that number represented, but more probably the number was sixteen as in the case in Adinotherium. Typical vertebrae measure:
| Specimen 3291 | ||
|---|---|---|
| Thoracic 3, | length of centrum | 21 mm. |
| Thoracic 3, | height from base of centrum to spine | 56 mm. |
| Thoracic 6, | length of centrum | 22 mm. |
| Thoracic 6, | height from base of centrum to spine | 79 mm. |
| Thoracic 14, | length of centrum | 26 mm. |
| Thoracic 14, | height from base of centrum to spine | 65 mm. |
In my series, there are six lumbars, which is one more than is credited to Adinotherium, though in that genus the number has not been definitely fixed. Typical lumbars measure as follows: