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The oldest authenticated peptide sequences to date were reported in 2016 from 3.8 Ma old ostrich eggshell (OES) from the site of Laetoli, Tanzania (Demarchi et al., 2016). Here we demonstrate survival of the same sequences in 6.5-9Ma OES recovered from a palaeosteppe setting in northwestern China. T...
ORGANISM(S): Struthio camelus (Ostrich) 
2022-12-29 | PXD035872 | Pride
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