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Grealy, Alicia; Phillips, Matthew; Miller, Gifford; et al. (April 2017). "Eggshell palaeogenomics: Palaeognath evolutionary history revealed through ancient nuclear and mitochondrial DNA from Madagascan elephant bird (Aepyornis sp.) eggshell". Molecular Phylogenetics and Evolution. 109: 151–163. Bibcode:2017MolPE.109..151G. doi:10.1016/j.ympev.2017.01.005. PMID28089793.