Table 1.
Results of radiocarbon dating and 87Sr/86Sr, δ18Ocarbonate and δ13Ccarbonate analysis of individuals excavated from Ty Isaf
| Accession number | Location/context | Age category/age at death | Tooth | Laboratory number (SUERC) | δ13C ‰ VPDB collagen | Radiocarbon age (BP) | Calibrated date range (cal BC, 95% confidence) | Sr ppm (mg/kg) | 87Sr/86Sr | δ13Ccarbonate ‰ VPDB enamel | δ18Ocarbonate ‰ VPDB | δ18Ocarbonate ‰ VSMOW | δ18Ophosphate ‰ VSMOW |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 39.190/317 | Undocumented | Adult | LM2 | SUERC‐57795 (GU36260) | −20.7 | 4772 ± 30 | 3650–3380 | 50 | 0.71181 | −15.7 | −3.4 | 27.4 | 18.6 |
| LM3 | 35 | 0.71284 | −16.2 | −3.6 | 27.2 | 18.4 | |||||||
| 39–190/312 | Undocumented | Adult | LM2 | 71 | 0.71300 | −16.1 | −4.6 | 26.2 | 17.4 | ||||
| LM3 | SUERC‐57796 (GU36261) | −20.8 | 4755 ± 31 | 3640–3380 | 83 | 0.71265 | −15.6 | −4.3 | 26.5 | 17.7 | |||
| 39.190/148b | Chamber 1, East compartment | Adult | LM2 | SUERC‐57787 (GU36255) | −21.0 | 4680 ± 30 | 3630–3370 | 80 | 0.71238 | −16.3 | −4.1 | 26.7 | 17.9 |
| LM3 | 102 | 0.71372 | −16.2 | −4.2 | 26.6 | 17.8 | |||||||
| 39.190/310 | Chamber 2, South side of entrance passage | Adult | LM2 | SUERC‐57786 (GU36254) | −20.7 | 4672 ± 31 | 3630–3360 | 68 | 0.71436 | −15.4 | −4.1 | 26.7 | 17.9 |
| LM3 | 76 | 0.71330 | −15.1 | −4.6 | 26.2 | 17.4 | |||||||
| 39.190/201 | Undocumented | Adult | LM2 | SUERC‐57794 (GU36259) | −20.6 | 4672 ± 31 | 3630–3360 | 78 | 0.71328 | −15.3 | −4.3 | 26.5 | 17.6 |
| LM3 | 97 | 0.71282 | −16.0 | −4.4 | 26.4 | 17.5 | |||||||
| 39.190/58 | Chamber 1, North East corner of East compartment |
Sub‐adult (> 12 years) |
LM2 | SUERC‐57784 (GU36252) | −20.9 | 4616 ± 30 | 3520–3340 | 79 | 0.71524 | −14.9 | −5.4 | 25.4 | 16.5 |
| 39.190/148a | Chamber 1, East compartment | Adult | LM2 | SUERC‐57785 (GU36253) | −21.2 | 4594 ± 30 | 3500–3120 | 222 | 0.71059 | −16.7 | −3.1 | 27.7 | 19.0 |
| LM3 | 76 | 0.71351 | −16.9 | −4.0 | 26.7 | 17.9 | |||||||
| 39.190/59 | Undocumented | Adult | LM2 | SUERC‐57790 (GU36258) | −20.6 | 4430 ± 33 | 3330–2920 | 52 | 0.71177 | −16.8 | −3.4 | 27.4 | 18.6 |
| LM3 | 61 | 0.71017 | −16.2 | −3.9 | 26.9 | 18.1 | |||||||
| 39.190/324 | Chamber 2, Outside chamber on North side | Child (3–4 years) | LDM1 | 59 | 0.71409 | −15.2 | −3.6 | 27.2 | 18.4 | ||||
| LDM2 | SUERC‐57789 (GU36257) | −20.7 | 3309 ± 32 | 1670–1500 | 64 | 0.71458 | −15.6 | −3.6 | 27.2 | 18.4 | |||
| 39.190/cow | Chamber 1, West compartment | Unknown |
PM3 Cervix (0.5 ‐ 5.0 mm) |
SUERC‐57788 (GU36256) | −22.9 | 4039 ± 30 | 2840–2470 | 126 | 0.71312 | ||||
|
PM3 Cusp (12.5 −17.5 mm) |
155 | 0.71304 | |||||||||||
Information on the contexts of sampled specimens (where available) is as recorded on labelling and documentation associated with the collections in the National Museum Wales. All human teeth derive from mandibular dentition: L = left; DM1 = deciduous first molar; DM2 = deciduous second molar; M2 = permanent second molar; M3 = permanent third molar. PM3 = loose third permanent premolar of a cow.