TABLE 7.

Mandibular tooth calcification: first permanent molar (M₁) and incisors (I₁)^a

Species	M1: Age at crown completion (years)	I1: Onset of calcification (years)	References	Weaning age (years)	References
Pan troglodytes	~2	0.5	Anenome et al. (1991)	4.6–5	Kappeler and Pereira (2003)
Macaca nemestrina	0.89–.97	2.11–2.28	Sirianni and Swindler (1985)	0.66–1	Kappeler and Pereira (2003)
Saguinus oedipus	>0.083, but <0.32	~ 0.083	New data	0.14	Kappeler and Pereira (2003)
Cebuella	~0.083	Perinatalb	New data	0.25	Kappeler and Pereira (2003)
Lemur catta	>0.083	>0.055, but <0.083	New data	0.50	Zehr et al. (2014)
Varecia variegata	>0.083	>0.033, but <0.068	New data	0.30	Zehr et al. (2014)
Propithecus coquereli	~Birth	Prenatal	New data	0.39	Zehr et al. (2014)
Galago moholi	<0.083	Prenatal	New data	0.25	Zehr et al. (2014)

^aTable reproduced from Smith TD, DeLeon VB, Vinyard, CJ, & Young JW. (in press). Skeletal anatomy of the newborn primate. Cambridge, England: Cambridge University Press.

^bTooth cusp/crown is calcified in some but not all newborns.