Fig. 6
![Fig. 6](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40623-020-01266-3/MediaObjects/40623_2020_1266_Fig6_HTML.jpg)
Photographs at a the bottom area of the alas at A1 and, b Plot C in Fig. 2d. Polygonal texture is present at both the bottom area of the alas, and Plot C
Photographs at a the bottom area of the alas at A1 and, b Plot C in Fig. 2d. Polygonal texture is present at both the bottom area of the alas, and Plot C