Table 1.

Crown formation times in the Scladina juvenile compared with two modern human populations

Tooth*Cusp ScladinaNorth European NSouth African § N
UI21,2061,095 ± 4916984 ± 3622
UC1,3011,398 ± 55391,213 ± 4230
UM1mp8721,208 ± 7871,088 ± 666
mb811 1,082 ± 4761,040 ± 6412
UM2mp9671,193 ± 4961,263 ± 828
mb9491,087 ± 5991,206 ± 749
LC1,3261,866 ± 73131,494 ± 5625
LP3Buccal9941,437 ± 68191,122 ± 4216
  • Values are in days, followed by the standard deviation and sample size (N). Anterior tooth data are from ref. 17, premolar data are from ref. 11, and molar data are from ref. 34.

  • *U, upper; L, lower; I2, lateral incisor; C, canine; P3, third premolar; M1, first molar; M2, second molar.

  • mp, mesiopalatal cusp (protocone); mb, mesiobuccal cusp (paracone). Dash indicates single-cusped tooth.

  • North European indicates modern humans of northern European origin.

  • §South African indicates modern humans of southern African origin.

  • Assumes an equal amount of prenatal formation as the upper first molar mesiopalatal cusp.