Figure 4.
Bomb radiocarbon dating of hawksbill scute growth line sequences. (a–c) Microsampled drill lines from individual scute cross sections provide Δ14C values throughout development, mapped onto the hawksbill Δ14C curve. Newest tissue was date-referenced, oldest tissue dates are limited VBGF constrains and Δ14C values, intermediary samples are interpolated. (d–o) Twelve cross-section images with sampled drill line transects. Measured lengths and lifespan dates are provided; scale bar for each inset represents 5 mm.