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Fig. 4 | Heritage Science

Fig. 4

From: Apatite in Hamipterus tianshanensis eggshell: advances in understanding the structure of pterosaur eggs by Raman spectroscopy

Fig. 4

SEM–EDS results for no. 1 eggshell sample (cross-section). a Backscatter electronic image at low magnification, outside of eggshell is up. b Backscatter electronic image at high magnification, outside of eggshell is up. c Backscatter electronic image, outside of eggshell is down. d Elemental mapping images of the same area for c (scale bar 150 μm). Outside of eggshell is down

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