Table 4. Relative proportions of three major vertebrate groups in 15 time intervals, based on data from Table 1. Time intervals represent approximately 100 kyr each. See also Figure 10.
| Survey Level | Age (Ma) |
Fish | Reptile | Mammal |
| KL07 | 7.3 | 0.000 | 0.300 | 0.700 |
| KL09+KL10 | 7.6 | 0.000 | 0.129 | 0.871 |
| KL08 | 7.7 | 0.000 | 0.320 | 0.680 |
| KL11+KL21 | 7.9 | 0.000 | 0.207 | 0.793 |
| KL12 | 8.5 | 0.000 | 0.266 | 0.734 |
| KL16+ML05 | 8.7 | 0.005 | 0.246 | 0.749 |
| KL02+KL14+ML06 | 8.8 | 0.006 | 0.234 | 0.760 |
| DK01+KL13 | 9.0 | 0.000 | 0.252 | 0.748 |
| KL01 | 9.2 | 0.000 | 0.213 | 0.787 |
| KL03 | 9.3 | 0.033 | 0.492 | 0.475 |
| KL05+06 | 9.5 | 0.000 | 0.281 | 0.719 |
| KL04 | 9.7 | 0.000 | 0.215 | 0.785 |
| KL20 | 9.8 | 0.000 | 0.362 | 0.638 |
| RK01+DH01-2 | 10.3 | 0.000 | 0.416 | 0.584 |
| RK02 | 10.4 | 0.038 | 0.434 | 0.528 |