Table 6. δ13C and δ18O values obtained from six Hipparion (s.l.) specimens from the hominoid section.
| Specimen | Tissue | CaCO3(%) | δ13CPDB(‰) | δ18OPDB(‰) | δ18OVSMOW(‰) |
| IRWD 1 | Enamel | 4.0 | −9.9 | −3.9 | 26.9 |
| IRWD 2 | Enamel | 4.0 | −11.4 | −4.3 | 26.4 |
| IRWD 3 | Enamel | 4.9 | −12.1 | −4.9 | 25.8 |
| IRWD 4 | Enamel | 4.4 | −11.7 | −6.8 | 23.8 |
| IRWD 5 | Enamel | 5.2 | −11.0 | −8.8 | 21.8 |
| IRWD 6 | Enamel | 3.6 | −11.1 | −4.5 | 26.2 |
| Mean | 4.3 | −11.2 | −5.5 | 25.2 | |
| Standard deviation | 0.6 | 0.7 | 1.7 | 1.8 | |
| IRWD 1 | Dentine | 7.3 | −13.1 | −7.4 | 23.2 |
| IRWD 2 | Cement | 6.8 | −14.4 | −6.7 | 24.0 |
| IRWD 3 | Cement | 5.3 | −15.3 | −8.5 | 22.1 |
| IRWD 4 | Bone (dentary) | 9.0 | −14.3 | −6.6 | 24.0 |
| IRWD 5 | Dentine | 6.7 | −13.7 | −8.0 | 22.6 |
| IRWD 6 | Dentine | 6.1 | −13.6 | −7.6 | 23.0 |
| Mean | 6.9 | −14.1 | −7.5 | 23.2 | |
| Standard deviation | 1.1 | 0.7 | 0.7 | 0.7 | |