Table 1.

AMS dates for extinct Puerto Rican mammals.

species	lab. no.	material	site	13C/12C	age ±1σ	calibrated date, 68.2% probability	calibrated date, 95.5% probability
Heteropsomys insulans	OxA-15142	mandibular fragment	grave infill, Cag-3	−19.6	1219±26	772–870 AD	694–887 AD
Nesophontes edithae	OxA-15141	mandible	grave infill, Cag-3	−19.3	990±24	1015–1147 AD	991–1153 AD
Elasmodontomys obliquus	OxA-15129	charcoal, 0–2 cm interval	Cueva del Perro	−27.3	3512±28	1887–1775 BC	1913–1751 BC
Elasmodontomys obliquus	OxA-15132	charcoal, combined 0–4 cm interval	Cueva del Perro	−26.8	2407±28	511–407 BC	732–399 BC