Table 5. Summary statistics for centrum length, width, and height (mm) in lumbar vertebrae of Chrysocetus fouadassii, Antaecetus aithai, and Eocetus schweinfurthi from Gueran and El Briej in southwestern Morocco.
| Measurement | N | Minimum (mm) | Maximum (mm) | Mean (mm) | Standard deviation (mm) | Coefficient of variation (std. dev./mean) |
|---|---|---|---|---|---|---|
| Chrysocetus fouadassii | ||||||
| Lumbar length | 28 | 45 | 72 | 62.7 | 8.5 | 0.14 |
| Lumbar width | 27 | 50 | 68 | 61.0 | 4.6 | 0.08 |
| Lumbar height | 26 | 43 | 68 | 56.5 | 5.9 | 0.10 |
| Pachycetus aithai | ||||||
| Lumbar length | 28 | 125 | 195 | 165.2 | 20.4 | 0.12 |
| Lumbar width | 17 | 100 | 145 | 127.1 | 14.6 | 0.12 |
| Lumbar height | 16 | 89 | 125 | 106.6 | 13.9 | 0.13 |
| Eocetus schweinfurthi | ||||||
| Lumbar length | 25 | 200 | 345 | 264.0 | 48.0 | 0.18 |
| Lumbar width | 14 | 140 | 190 | 156.3 | 15.8 | 0.10 |
| Lumbar height | 14 | 114 | 170 | 132.6 | 16.4 | 0.12 |