Table 1.

Model performance for the four predictive models tested. Model decay describes how robust model predictions are to possible melanosome shrinkage during fossilization

	Accuracy	Model decay	P	Cohen's Kappa
Multinomial logistic regression	83%	50%	<0.001	0.65
QDA total	73%	83%	<0.001	0.51
QDA solid cylindrical	66%	83%	<0.001	0.43
QDA Li et al. ( 2012 )	63%	83%	<0.001	0.42