Table 1.

Directly dated Chendytes lawi bones from California archaeological sites

Site no. and name	Laboratory no.	Skeletal element	Depth, cm	Measured 14C age, years B.P.	13C/12C ratio,* ‰	Conventional 14C age, years B.P.	Calendar age range (100% marine), calendar years B.P.
CA-SON-348/H, Duncan's Point Cave	Beta-204802	Right tarsometatarsus	170–180	7,040 ± 40	−11.8	7,260 ± 40	7,560–7,390
CA-SCR-7, Laguna Creek	Beta-204032	Left femur	Surface	3,670 ± 40	−15.3	3,830 ± 40	3,550–3,320
CA-SLO-2, Diablo Canyon	Beta-206363	Tibiotarsus	120–130	7,310 ± 40	−13.0	7,510 ± 40	7,720–7,630
CA-SLO-2, Diablo Canyon	SR-6833	Tarsometatarsus	290–300	—	−13.2	8,355 ± 25	8,580–8,440
CA-VEN-1, Little Sycamore	Beta-206734	Tibiotarsus	20–30	2,910 ± 40	−16.9	3,040 ± 40	2,720–2,350
CA-SMI-261, Daisy Cave	Beta-218492	Left femur	122–137	9,850 ± 70	−12.7	10,050 ± 70	11,150–10,280

*Measured ¹³C/¹²C ratios were calculated relative to the PDB-1 international standard.