Table 1. Growth models fitted to cumulative growth curves of both specimens.

Taxon	Model descriptor	Linear growth model	Allometric growth model
Panderodus equicostatus	Formula	y = 0.3941x + 0.4725	y = 0.6092x0.8749
	Residual standard error	0.2498	0.1554453
	AIC	5.640348	−19.97418
Proconodontus muelleri	Formula	y = 0.5472x + 0.8114	y = 0.7891x0.9119
	Residual standard error	0.5721	0.3597
	AIC	103.7894	49.95944

Note:

Models fitted to cumulative growth curves obtained from BSE images across sections through Panderodus equicostatus (25 degrees of freedom) and Proconodontus muelleri (56 degrees of freedom). All model parameter estimates were significant at alpha = 0.001.