The angle of divergence in the palatal ruga pattern.
One of the variables in a classification of the palatal ruga pattern displayed an unusual bimodal distribution which occurred in 6 population groups. The two sub-groups involved were defined by means of a maximum likelihood estimation procedure, a stepwise discriminant analysis and a jackknife classification procedure. The variables which supported the bimodality were mostly concerned with palatal dimensions and the classifications were all above 50% with the Bushman groups classifying better than the others at 77.8% (left) and 70.8% (right).
Thomas
C J
CJ
Kotze
T J
TJ
Nash
J M
JM
D000353:Africa, Southern; D000885:Anthropology, Physical; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D010159:Palate / Q000033:anatomy & histology*; D044469:Racial Groups; D012727:Sex Characteristics