Example of between-site correlations with multiple genera. Genera A, B, C, and D co-occur only in unit 2 at section A; genera A, B, C are moderate racemizers, genus D is a fast racemizer. Correlation of section B and C with the more complete suite in section A is possible using available taxa. Dashed lines show the racemization-based correlations.

(Figure from Miller, G.H., and Brigham-Grette, J., 1989, Amino acid Geochronology: Resolution and Precision in Carbonate Fossils, IN, N. Rutter and J.Brigham-Grette and N. Catto, guest eds., "Applied Aspects of Quaternary Geochronology", Quaternary International. v. 1, p. 111-128.)

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