Table 1

Two-dimensional and three-dimensional enamel thickness data for each australopith specimen.

taxontoothaccessionenamel volume (mm3)dentine volume (mm3)EDJ surface area (mm2)three-dimensional average enamel thickness (mm)three-dimensional relative enamel thicknessmesial section enamel area (mm2)mesial section dentine area (mm2)mesial section EDJ length (mm)mesial section average enamel thickness (mm)mesial section relative enamel thickness
A. africanusmandibular LM2STW 3540.81711.18363.861.4916.6543.4844.1820.892.0831.32
A. africanusmandibular LM2STW 421B503.57589.82409.391.2314.6731.7561.8224.411.3016.54
A. africanusmandibular LM3STW 412B345.47531.32353.520.9812.0725.5744.3621.431.1917.91
A. africanusmandibular LM3STW 529554.49561.71347.451.6019.3442.5751.6422.101.9326.81
A. africanusmandibular LM3STW 560B551.06777.22394.431.4015.2039.9663.0424.031.6620.94
A. africanusmandibular RM1STS 9468.27486.31227.882.0526.1336.0142.5919.871.8127.76
A. africanusmandibular RM1STW 421A483.31668.33368.771.3114.9930.3260.3724.881.2215.69
A. africanusmaxillary LM1STS 57382.29491.08240.581.5920.1433.9346.6122.051.5422.54
A. africanusmaxillary LM3STW 179480.39573.15288.141.6720.0742.2355.7822.081.9125.60
P. robustusmandibular RM1DNH 60B383.29387.34283.161.3518.5731.1038.5020.091.5524.95
P. robustusmandibular RM1DNH 67469.41383.89201.392.3332.0733.2136.4918.771.7729.29
P. robustusmandibular RM1SK 3974563.39445.73303.171.8624.3340.7744.2620.122.0330.47
P. robustusmandibular RM2DNH 60C485.52410.35312.071.5620.9439.9336.3018.572.1535.68
P. robustusmaxillary LM1SK 102591.98498.18248.182.3930.0949.8156.7923.102.1628.61
P. robustusmaxillary LM1SK 832642.42544.84381.781.6820.6050.7254.7523.612.1529.03
P. robustusmaxillary LM3SK 41574.60620.92419.661.3716.0547.1867.0723.402.0224.62
P. robustusmaxillary RM3SK 31624.15783.59320.621.9521.1248.5075.0424.901.9522.49
P. robustusmaxillary RM3TM 1517C682.82493.60336.202.0325.7061.5469.9024.282.5330.31