Citation Walton D, Cusack M & Curry GB (1993) Implications of the amino acid composition of recent New Zealand brachiopods. Palaeontology, 36 (4), pp. 883-896.
Abstract Intracrystalline proteins and amino acids were extracted from within the shells of several species of Recent brachiopods from New Zealand. The amino acids from within the shell may be used as objective taxonomic discriminators. The presence of amino acids containing taxonomic information within the shells of Recent brachiopods has implications for the use of amino acid analysis in the investigation of fossil species. -from Authors