Table 4. δ¹³C levels in teeth from individuals raised in different parts of North America.

Case No.	Sex	Tooth No	Enamel formationtime (yrs)1	Raised in	δ13C enamel	δ13C roots
3	M	15	6.6	BC	−11.78	−13.40
4	M	44	5.1	BC	−11.48	−12.22
5	F	36	2.3	BC	−10.99
6	M	22	4	BC	−10.00
12	M	37	6.5	WA	−11.74
12	M	16	3.3	WA	−11.50
11	F	24	4.9	WA	−10.35
13	M	15	6.6	WA	−10.33
9	M	17	6.5	WA	−10.03	−12.31
7	M	48	13	WA	−9.45
7	M	38	13	WA	−9.38
14	M	17	6.5	MT	−11.27	−6.27
15	F	26	3	MT	−11.07
14	M	28	12.6	MT	−11.03
17	M	45	6.5	MA	−7.89
19	M	14	5.6	CT	−10.84	−12.20
18	M	14	5.6	CT	−10.82	−10.41
19	M	34	5.1	CT	−10.56
22	M	28	12.6	CA	−12.56	−12.28
21	M	15	6.6	CA	−10.51	−11.28
20	F	33	4.1	CA	−10.39	−11.95
23	M	42	3	GA	−8.98
24	F	23	3.8	AL	−9.02	−10.91
28	M	36	2.4	TX	−10.19
25	F	14	4.9	TX	−9.54	−10.97
30	M	26	3.3	TX	−9.20
25	F	34	4.4	TX	−9.18
30	M	12	4.0	TX	−9.04
29	M	46	2.4	TX	−8.96	−10.65
29	M	18	12.6	TX	−8.85
26	M	14	5.6	TX	−8.83	−10.17
27	M	23	4.7	TX	−8.41	−9.92
36	M	37	6.5	Mexico	−7.78	−6.32
39	F	45	5.7	Mexico	−6.37	−9.55
36	M	36	2.4	Mexico	−6.29
33	M	23	4.7	Mexico	−6.23	−8.77
34	M	26	3.3	Mexico	−5.76
35	F	46	2.3	Mexico	−5.71	−6.80
32	F	46	2.3	Mexico	−4.32	−10.60
37	F	35	5.7	Mexico	−0.54
38	F	36	2.3	Mexico	0.11

¹Enamel formation time according to Nolla [20].