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The document discusses the analysis of fossil proteins in vertebrate calcified tissues, focusing on amino acid assays and the presence of collagen in fossils from various geological ages. It highlights the challenges of contamination and the significance of racemization in determining the authenticity of fossil proteins. The study indicates that while some fossil materials show amino acid profiles similar to modern collagen, there are notable differences that suggest changes during fossilization.

Author

Everton Fernando Alves

Language

EN