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. 2002 Apr 30;99(9):6124–6129. doi: 10.1073/pnas.092685099

Figure 3.

Figure 3

(A) Long-period lines (striae of Retzius, large white arrows) in lateral enamel of a young P. ingens from the cave of Ankazoabo, southwest Madagascar, in the collections of the University of Antananarivo (AM-PPH1). E, Enamel; D, dentine. Black arrow indicates location of the neonatal line. (B) Daily lines (small white arrowheads) in between adjacent striae (large white arrows) in cervical enamel of P. ingens (AM-PPH1). Enamel prisms run from bottom left to top right. Scale bar = 10 μm.