The avian palaeognath phylogeny has been recently revised significantly due to the advancement of genome-wide comparative analyses and provides the opportunity to trace the evolution of the microstructure and crystallography of modern dinosaur eggshells. Here. eggshells of all major clades of Palaeognathae (including extinct taxa) and selected eggshells of Neognathae and non-avian din... https://www.hacklinkci.com/