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. 2015 May 13;10(5):e0124980. doi: 10.1371/journal.pone.0124980

Fig 4. A mandible of an aged female African elephant.

Fig 4

The white arrow/red dot marks the Age Reference Point (ARP) and the yellow line marks the Age Reference Line (ARL). The remnant of the tooth in the right mandible had rotated as shown. Grid = 1cm2.