Table 1.
Hominid 1
|
Hominid 2
|
Hominid 3
|
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---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MS | Age (A)
|
MS | Age (B)
|
MS | Age (B)
|
MS | Age (B)
|
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Living humans
|
Chimps | Living humans
|
Chimps | Living humans
|
Chimps | Living humans
|
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ATP | HMK | ATP | ATP | HMK | ATP | HMK | Chimps | ||||||||
Maxilla | |||||||||||||||
I1 | Crc | 3.7 | 4.3 | 4.0 | |||||||||||
I2 | Cr3/4-Crc | 3.8 | 4.9 | 4.5 | A1/2-Ac (ec) | 10.5 | >9.7 | 7.2 | |||||||
C | Cr3/4− | 3.8 | 4.7 | 5.1 | Cr2/3 | 3.8 | 4.3 | 4.8 | R3/4-Rc (e) | 10.3 | 11.0 | 10.3 | |||
P3 | Cr3/4+ | 5.0 | 5.8 | 4.7 | Coc-Cr1/2 | 3.9 | 4.4 | 2.9 | R3/4-Rc (ec) | 10.5 | 11.5 | 8.0 | |||
P4 | Cr2/3+ | 5.2 | 6.0 | 4.0 | CV | 2.1 | 6.4 | 20.6 | R2/3 (e) | 10.1 | 10.8 | 7.3 | |||
M1 | R1/4 | 4.9 | 5.3 | 3.3 | Complete | >10.1 | >9.5 | >6.8 | |||||||
M2 | Cr1/2 | 5.3 | 5.7 | 3.0 | R1/3 (ne) | 10.0 | 11.2 | 5.5 | |||||||
M3 | Cr 2/3 (ne) | 11.9 | 11.8 | 6.0 | |||||||||||
CV | 12.4 | 9.3 | 22.2 | CV | 6.5 | 3.5 | 23.0 | ||||||||
Mandible | |||||||||||||||
I2 | Ri-R1/4 | 5.4 | 5.7 | 5.2 | |||||||||||
C | Cr3/4 | 3.9 | 4.3 | 5.1 | |||||||||||
P3 | Cr3/4 | 4.7 | 5.7 | 4.5 | |||||||||||
P4 | Cr1/2 | 4.8 | 5.4 | 3.8 | |||||||||||
M1 | R1/4+ | 5.0 | 5.3 | 3.6 | |||||||||||
M2 | Cr1/2− | 5.2 | 5.7 | 3.2 | A 1/2 (ec) | 13.6 | 8.8 | ||||||||
M3 | Cli (ne) | 14.8 | 7.5 | ||||||||||||
CV | 10.8 | 10.1 | 19.5 |
A, Age (years) of formation of a conspicuous enamel (hypoplasia) and dentine developmental disturbance; B, age at death; CV, coefficient of variation of dental ages; emerging; ec, eruption completed; ne, nonerupted. ATP, data from Anderson et al. (12), males, HMK, data from Harris and McKee (13), white males. Chimps, data from Reid et al. (14) and Dean and Wood (15), modified by Smith (16).