"Supplementary1 Table. Intra-observer Error Procrustes ANOVA S1 Table. Intra-observer measurement error. statistical significance (P value) of intra-observer measurement error of skull size and shape components of variation. Centroid Size Effect Sum of Squares Mean Squares df F P (param.) Individual 57543,517 340,494 169 887,86 <0.0001 Error 65,194 0,38349 170 Shape Effect Sum of Squares Mean Squares df F P (param.) Individual 1,49092072 0,000183792 8112 5,43 <0.0001 Side 0,00686221 0,000180585 38 5,33 <0.0001 Individual *Side 0,21744654 0,000033859 6422 8,09 <0.0001 Error 0,06118382 0,000004184 14620 Mean squares values, degrees of freedom (df), F statistic, and statistical significance (P value) of intra-observer measurement error of skull size and shape components of variation. ",,,,, Centroid Size,,,,, Effect,Sum of Squares,Mean Squares,df,F,P (param.) Individual,57543.517,340.494,169,887.86,<0.0001 Error ,65.194,0.38349,170,, ,,,,, ,,,,, Shape,,,,, Effect,Sum of Squares,Mean Squares,df,F,P (param.) Individual,1.49092072,0.000183792,8112,5.43,<0.0001 Side,0.00686221,0.000180585,38,5.33,<0.0001 Individual *Side,0.21744654,0.000033859,6422,8.09,<0.0001 Error,0.06118382,0.000004184,14620,,