Fred Ruhe
Well-known member
Beatrice Demarchi, Meaghan Mackie, Zhiheng Li, Tao Deng, Matthew J Collins & Julia Clarke, 2022
Survival of mineral-bound peptides into the Miocene
eLife. 11. e82849
Abstract and free pdf: Survival of mineral-bound peptides into the Miocene
Previously, we showed that authentic peptide sequences could be obtained from 3.8-Ma-old ostrich eggshell (OES) from the site of Laetoli, Tanzania (Demarchi et al., 2016). Here, we show that the same sequences survive in a >6.5 Ma OES recovered from a palaeosteppe setting in northwestern China. The eggshell is thicker than those observed in extant species and consistent with the Liushu Struthio sp. ootaxon. These findings push the preservation of ancient proteins back to the Miocene and highlight their potential for paleontology, paleoecology, and evolutionary biology.
Enjoy,
Fred
Survival of mineral-bound peptides into the Miocene
eLife. 11. e82849
Abstract and free pdf: Survival of mineral-bound peptides into the Miocene
Previously, we showed that authentic peptide sequences could be obtained from 3.8-Ma-old ostrich eggshell (OES) from the site of Laetoli, Tanzania (Demarchi et al., 2016). Here, we show that the same sequences survive in a >6.5 Ma OES recovered from a palaeosteppe setting in northwestern China. The eggshell is thicker than those observed in extant species and consistent with the Liushu Struthio sp. ootaxon. These findings push the preservation of ancient proteins back to the Miocene and highlight their potential for paleontology, paleoecology, and evolutionary biology.
Enjoy,
Fred