Fig. 3From: Apatite in Hamipterus tianshanensis eggshell: advances in understanding the structure of pterosaur eggs by Raman spectroscopyHamipterus tianshanensis egg Sample no. 2. a A half pterosaur egg. b Another side of this half pterosaur egg. c Enlargement of the only preserved well area in this sample. d Most areas are in poor condition, with white eggshell exfoliation. e The eggshell area was covered by matrix, and these areas can be recognized as non-exfoliationBack to article page